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Hamdi Y, Boujemaa M, Ben Aissa-Haj J, Radouani F, Khyatti M, Mighri N, Hannachi M, Ghedira K, Souiai O, Hkimi C, Kammoun MS, Mejri N, Bouaziz H, Beloufa MA, Charoute H, Barakat A, Najjar I, Taniguchi H, Pietrosemoli N, Dellagi K, Abdelhak S, Boubaker MS, Chica C, Rouleau E. A regionally based precision medicine implementation initiative in North Africa:The PerMediNA consortium. Transl Oncol 2024; 44:101940. [PMID: 38537326 DOI: 10.1016/j.tranon.2024.101940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 02/23/2024] [Accepted: 03/11/2024] [Indexed: 04/21/2024] Open
Abstract
Precision Medicine is being increasingly used in the developed world to improve health care. While several Precision Medicine (PM) initiatives have been launched worldwide, their implementations have proven to be more challenging particularly in low- and middle-income countries. To address this issue, the "Personalized Medicine in North Africa" initiative (PerMediNA) was launched in three North African countries namely Tunisia, Algeria and Morocco. PerMediNA is coordinated by Institut Pasteur de Tunis together with the French Ministry for Europe and Foreign Affairs, with the support of Institut Pasteur in France. The project is carried out along with Institut Pasteur d'Algérie and Institut Pasteur du Maroc in collaboration with national and international leading institutions in the field of PM including Institut Gustave Roussy in Paris. PerMediNA aims to assess the readiness level of PM implementation in North Africa, to strengthen PM infrastructure, to provide workforce training, to generate genomic data on North African populations, to implement cost effective, affordable and sustainable genetic testing for cancer patients and to inform policy makers on how to translate research knowledge into health products and services. Gender equity and involvement of young scientists in this implementation process are other key goals of the PerMediNA project. In this paper, we are describing PerMediNA as the first PM implementation initiative in North Africa. Such initiatives contribute significantly in shortening existing health disparities and inequities between developed and developing countries and accelerate access to innovative treatments for global health.
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Affiliation(s)
- Yosr Hamdi
- Laboratory of Biomedical Genomics and Oncogenetics, LR20IPT05, Institut Pasteur de Tunis, University of Tunis El Manar, Tunis 1002, Tunisia.
| | - Maroua Boujemaa
- Laboratory of Biomedical Genomics and Oncogenetics, LR20IPT05, Institut Pasteur de Tunis, University of Tunis El Manar, Tunis 1002, Tunisia
| | - Jihenne Ben Aissa-Haj
- Laboratory of Biomedical Genomics and Oncogenetics, LR20IPT05, Institut Pasteur de Tunis, University of Tunis El Manar, Tunis 1002, Tunisia; Department of Human and Experimental Pathology, Institut Pasteur de Tunis, Tunis 1002, Tunisia
| | - Fouzia Radouani
- Chlamydiae and Mycoplasmas Laboratory, Research Department, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Meriem Khyatti
- Laboratory of Viral Oncology, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Najah Mighri
- Laboratory of Biomedical Genomics and Oncogenetics, LR20IPT05, Institut Pasteur de Tunis, University of Tunis El Manar, Tunis 1002, Tunisia
| | - Mariem Hannachi
- Laboratory of Bioinformatics, Biomathematics and Biostatistics LR20IPT09, Pasteur Institute of Tunis, University of Tunis El Manar, Tunis 1002, Tunisia
| | - Kais Ghedira
- Laboratory of Bioinformatics, Biomathematics and Biostatistics LR20IPT09, Pasteur Institute of Tunis, University of Tunis El Manar, Tunis 1002, Tunisia
| | - Oussema Souiai
- Laboratory of Bioinformatics, Biomathematics and Biostatistics LR20IPT09, Pasteur Institute of Tunis, University of Tunis El Manar, Tunis 1002, Tunisia
| | - Chaima Hkimi
- Laboratory of Bioinformatics, Biomathematics and Biostatistics LR20IPT09, Pasteur Institute of Tunis, University of Tunis El Manar, Tunis 1002, Tunisia
| | - Mohamed Selim Kammoun
- Laboratory of Bioinformatics, Biomathematics and Biostatistics LR20IPT09, Pasteur Institute of Tunis, University of Tunis El Manar, Tunis 1002, Tunisia
| | - Nesrine Mejri
- Laboratory of Biomedical Genomics and Oncogenetics, LR20IPT05, Institut Pasteur de Tunis, University of Tunis El Manar, Tunis 1002, Tunisia; Medical Oncology Department, Abderrahmane Mami Hospital, Faculty of Medicine, University Tunis El Manar, Tunis, Tunisia
| | - Hanen Bouaziz
- Laboratory of Biomedical Genomics and Oncogenetics, LR20IPT05, Institut Pasteur de Tunis, University of Tunis El Manar, Tunis 1002, Tunisia; Department of Carcinological Surgery, Salah Azaiez Institute, Tunis, Tunisia
| | | | - Hicham Charoute
- Research unit of Epidemiology, Biostatistics and Bioinformatics, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Abdelhamid Barakat
- Laboratory of Genomics and Human Genetics, Institut Pasteur du Maroc 20360, Casablanca, Morocco
| | - Imène Najjar
- Biomics, Center for Technological Resources and Research (C2RT), Institut Pasteur, Paris 75015, France
| | - Hiroaki Taniguchi
- The Polish Academy of Sciences, Poland; University Mohamed VI, Morocco
| | - Natalia Pietrosemoli
- Institut Pasteur, Université Paris Cité, Bioinformatics and Biostatistics Hub F-75015, Paris, France
| | - Koussay Dellagi
- Pasteur Network Association, Institut Pasteur, Paris, France
| | - Sonia Abdelhak
- Laboratory of Biomedical Genomics and Oncogenetics, LR20IPT05, Institut Pasteur de Tunis, University of Tunis El Manar, Tunis 1002, Tunisia
| | - Mohamed Samir Boubaker
- Laboratory of Biomedical Genomics and Oncogenetics, LR20IPT05, Institut Pasteur de Tunis, University of Tunis El Manar, Tunis 1002, Tunisia; Department of Human and Experimental Pathology, Institut Pasteur de Tunis, Tunis 1002, Tunisia
| | - Claudia Chica
- Institut Pasteur, Université Paris Cité, Bioinformatics and Biostatistics Hub F-75015, Paris, France
| | - Etienne Rouleau
- Department of Biology and Pathology-Cancer Genetics Laboratory-Gustave Roussy 94805, Villejuif, France
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AitRaise I, Amalou G, Redouane S, Charoute H, Snoussi K, Abdelghaffar H, Bonnet C, Petit C, Barakat A. Novel pathogenic WHRN variant causing hearing loss in a moroccan family. Mol Biol Rep 2023; 50:10663-10669. [PMID: 37924449 DOI: 10.1007/s11033-023-08901-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 10/05/2023] [Indexed: 11/06/2023]
Abstract
OBJECTIVES The most prevalent sensory disease in humans is deafness. A variety of genes have been linked to hearing loss, which can either be isolated (non-syndromic) or associated with lesions in other organs (syndromic). It has been discovered that WHRN variants are responsible for non-syndromic hearing loss and Usher syndrome type II. METHODS AND RESULTS Exome sequencing in a consanguineous Moroccan patient with severe hearing loss identified a single homozygous mutation c.619G > T; p.Ala207Ser in WHRN, encoding a cytoskeletal scaffold protein that binds membrane protein complexes to the cytoskeleton in ocular photoreceptors and ear hair cell stereocilia. Bioinformatics methods and molecular dynamic modeling were able to predict the pathogenic implications of this variation. CONCLUSION We used whole exome sequencing to find a homozygous WHRN gene variant in a Moroccan family. Numerous bioinformatics methods predict that this modification might result in a change in the WHRN protein's structure.
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Affiliation(s)
- Imane AitRaise
- Genomics and Human Genetics Laboratory, Institut Pasteur du Maroc, 1 Place Louis Pasteur, Casablanca, 20360, Morocco
- Laboratory of Biochemistry, Environment and Agri-food, Faculty of Science and Techniques of Mohammedia, Hassan II University of Casablanca, Casablanca, Morocco
| | - Ghita Amalou
- Genomics and Human Genetics Laboratory, Institut Pasteur du Maroc, 1 Place Louis Pasteur, Casablanca, 20360, Morocco
| | - Salaheddine Redouane
- Genomics and Human Genetics Laboratory, Institut Pasteur du Maroc, 1 Place Louis Pasteur, Casablanca, 20360, Morocco
| | - Hicham Charoute
- Research unit of epidemiology, biostatistics and bioinformatics, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Khalid Snoussi
- Audition center, Cheikh Khalifa International University Hospital, Casablanca, Morocco
| | - Houria Abdelghaffar
- Laboratory of Biochemistry, Environment and Agri-food, Faculty of Science and Techniques of Mohammedia, Hassan II University of Casablanca, Casablanca, Morocco
| | - Crystel Bonnet
- Institut Pasteur, Université Paris Cité, Inserm, Institut de l'Audition, Paris, F-75012, France
| | - Christine Petit
- Institut Pasteur, Université Paris Cité, Inserm, Institut de l'Audition, Paris, F-75012, France
- Collège de France, Paris, F-75005, France
| | - Abdelhamid Barakat
- Genomics and Human Genetics Laboratory, Institut Pasteur du Maroc, 1 Place Louis Pasteur, Casablanca, 20360, Morocco.
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Redouane S, Charoute H, Harmak H, Malki A, Barakat A, Rouba H. Computational study of the potential impact of AURKC missense SNPs on AURKC-INCENP interaction and their correlation to macrozoospermia. J Biomol Struct Dyn 2023; 41:9503-9522. [PMID: 36326488 DOI: 10.1080/07391102.2022.2142846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 10/27/2022] [Indexed: 11/06/2022]
Abstract
Aurora Kinase C (AURKC) is considered an important element in Chromosome Passenger Complex (CPC), its interaction with Inner Centromere Protein (INCENP) plays a critical role in the establishment and the recruitment of a stable CPC during spermatogenesis. Genetic variations of AURKC gene are susceptible to impact AURKC-INCENP interaction, which may affect CPC stability and predispose male subjects to macrozoospermia. In this study, we systematically applied computational approaches using different bioinformatic tools to predict the effect of missense SNPs reported on AURKC gene, we selected the deleterious ones and we introduced their corresponding amino acid substitutions on AURKC protein structure. Then we did a protein-protein docking between AURKC variants and INCENP followed by a structural assessment of each resulting complex using PRODIGY server, Yassara view, Ligplot + and we choose the complexes of the most impactful variants for molecular dynamics (MD) simulation study. Seventeen missense SNPs of AURKC were identified as deleterious between all reported ones. All of them were located on relatively conserved positions on AURKC protein according to Consurf server. Only the four missense SNPs; E91K, D166V, D221Y and G235V were ranked as the most impactful ones and were chosen for MD simulation. D221Y and G235V were responsible for the most remarkable changes on AURKC-INCENP structural stability, therefore, they were selected as the most deleterious ones. Experimental studies are recommended to test the actual effect of these two variants and their actual impact on the morphology of sperm cells.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Salaheddine Redouane
- Laboratory of Genomics and Human Genetics, Institut Pasteur du Maroc, Casablanca, Morocco
- Laboratory of Physiopathology and Molecular Genetics, Department of Biology, Faculty of Sciences Ben M'Sik, Hassan II University, Casablanca, Morocco
| | - Hicham Charoute
- Research Unit of Epidemiology, Biostatistics and Bioinformatics, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Houda Harmak
- Laboratory of Genomics and Human Genetics, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Abderrahim Malki
- Laboratory of Physiopathology and Molecular Genetics, Department of Biology, Faculty of Sciences Ben M'Sik, Hassan II University, Casablanca, Morocco
| | - Abdelhamid Barakat
- Laboratory of Genomics and Human Genetics, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Hassan Rouba
- Laboratory of Genomics and Human Genetics, Institut Pasteur du Maroc, Casablanca, Morocco
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Ait El Cadi C, Dafrallah L, Amalou G, Charif M, Charoute H, Araqi-Houssaini A, Lakhiari H, Lenaers G, Barakat A. A case report of two Moroccan patients with hereditary neurological disorders and molecular modeling study on the S72L de novo PMP22 variant. Rev Neurol (Paris) 2023; 179:902-909. [PMID: 37296061 DOI: 10.1016/j.neurol.2023.01.728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 12/21/2022] [Accepted: 01/11/2023] [Indexed: 06/12/2023]
Abstract
Hereditary neurological disorders represent a wild group of hereditary illnesses affecting mainly the nervous system, the majority of which have a Mendelian inheritance pattern. Here we present the case of two Moroccan patients each affected by a different hereditary neurological disorder. In the first patient WES analysis revealed the presence of the p.Ser72Leu de novo mutation in the PMP22 gene reported for the first time in Africa, specifically in Morocco. This variant is predicted to be in a mutation "hot-spot" region causing Dejerine-Sottas syndrome called also Charcot-Marie-Tooth type 3. The molecular modeling study suggests an important alteration of hydrogen and hydrophobic interactions between the residue in position 72 of the PMP22 protein and its surrounding amino acids. On the other hand, the p.Ala177Thr mutation on the RNASEH2B gene, responsible of Aicardi-Goutières syndrome 2, was carried in a homozygous state by the second patient descending from a consanguineous family. This mutation is common among the Moroccan population as well as in other North African countries. The present results contributed to a better follow-up of both cases allowing better symptom management with convenient treatments.
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Affiliation(s)
- C Ait El Cadi
- Human Molecular Genetics Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco; Laboratoire de virologie, microbiologie, qualité et biotechnologies/eco-toxicologie et biodiversité, faculté des sciences et techniques de Mohammedia, BP 146, 28806 Mohammedia, Morocco
| | - L Dafrallah
- Human Molecular Genetics Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco; Laboratoire de virologie, microbiologie, qualité et biotechnologies/eco-toxicologie et biodiversité, faculté des sciences et techniques de Mohammedia, BP 146, 28806 Mohammedia, Morocco
| | - G Amalou
- Human Molecular Genetics Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco
| | - M Charif
- MitoLab team, institut MitoVasc, UMR CNRS 6015, Inserm U1083, université d'Angers, Angers, France; Laboratory of Physiology, Genetics and Ethnopharmacology, Faculty of Sciences, University Mohammed Premier, Oujda, Morocco
| | - H Charoute
- Human Molecular Genetics Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco
| | - A Araqi-Houssaini
- Cabinet neurologie Dr. Adil Araqi-Houssaini, résidence Infitah, 3, rue Nahass Nahoui Maarif, Casablanca, Morocco
| | - H Lakhiari
- Laboratoire de virologie, microbiologie, qualité et biotechnologies/eco-toxicologie et biodiversité, faculté des sciences et techniques de Mohammedia, BP 146, 28806 Mohammedia, Morocco
| | - G Lenaers
- MitoLab team, institut MitoVasc, UMR CNRS 6015, Inserm U1083, université d'Angers, Angers, France
| | - A Barakat
- Human Molecular Genetics Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco.
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Bouafi H, Krami AM, Morjane I, Slaoui K, Harmak H, Charoute H, Saile R, Barakat A. Genetic Association of LEP Gene Polymorphisms with Obesity in Moroccan Individuals: Case-Control Study and Updated Meta-analysis. Biochem Genet 2023; 61:1758-1774. [PMID: 36792840 DOI: 10.1007/s10528-023-10342-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 02/02/2023] [Indexed: 02/17/2023]
Abstract
Obesity is a global epidemic disease representing the fifth leading cause of death in the world. It was shown that it is caused by the interaction between environmental factors and genes including leptin gene (LEP). This paper aimed to analyze the association between the LEP gene polymorphisms rs7799039 and rs11761556 with obesity in Moroccan individuals as well as to perform an update meta-analysis of this genetic association. Both polymorphisms were genotyped in 146 obesity patients and 104 controls using real-time PCR technique. The genetic association analysis and the comparison of quantitative parameters were carried out using the R language. Moreover, a meta-analysis including 20 genetic association studies was performed using Review Manager 5.3 software. No significant association was found between the polymorphisms rs7799039 and rs11761556 and the risk of obesity. The comparison of biochemical and clinical parameters between the genotypes of the rs7799039 polymorphism, showed a significant increased triglycerides levels in carriers of AA or GA genotypes (P value = 0.040). The meta-analysis showed no significant association between the rs7799039 polymorphism and obesity under all genetic models. In conclusion, the case-control study and meta-analysis demonstrated that the LEP gene polymorphisms rs7799039 and rs11761556 cannot be considered as genetic risk factors for obesity.
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Affiliation(s)
- Hind Bouafi
- Biology and Health Laboratory, Health and Biotechnology Research Center, Ben M'Sik Faculty of Sciences, Hassan II University of Casablanca, Casablanca, Morocco
- Human Genomics and Genetics Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Al Mehdi Krami
- Human Genomics and Genetics Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Imane Morjane
- Human Genomics and Genetics Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Kenza Slaoui
- Human Genomics and Genetics Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Houda Harmak
- Human Genomics and Genetics Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Hicham Charoute
- Research Unit of Epidemiology, Biostatistics and Bioinformatics, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Rachid Saile
- Biology and Health Laboratory, Health and Biotechnology Research Center, Ben M'Sik Faculty of Sciences, Hassan II University of Casablanca, Casablanca, Morocco
| | - Abdelhamid Barakat
- Human Genomics and Genetics Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco.
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Redouane S, Harmak H, Elkarhat Z, Charoute H, Malki A, Barakat A, Rouba H. Exploring the impact of CYP11A1's missense SNPs on the interaction between CYP11A1 and cholesterol: A comprehensive structural analysis and MD simulation study. Comput Biol Chem 2023; 106:107937. [PMID: 37552904 DOI: 10.1016/j.compbiolchem.2023.107937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Revised: 07/30/2023] [Accepted: 07/31/2023] [Indexed: 08/10/2023]
Abstract
The process of steroidogenesis plays a vital role in human physiology as it governs the biosynthesis of mineralocorticoids, glucocorticoids, and androgens. These three classes of steroid hormones are primarily produced in the adrenal and gonadal glands through steroidogenesis pathways. Initiated by the side chain cleavage of cholesterol (CLR), this process leads to the conversion of cholesterol into pregnenolone and isocaproic aldehyde. The enzyme CYP11A1, encoded by the CYP11A1 gene, plays a key role in catalyzing the side chain cleavage of CLR. Several single nucleotide polymorphisms (SNPs) have been identified in the CYP11A1 gene, which may predispose carriers to disorders associated with abnormal steroidogenesis. Specifically, missense SNPs in the CYP11A1 gene have the potential to negatively impact the interaction between CYP11A1 and CLR, thus affecting the overall metabolome of steroid hormones. In this computational study, we focused on a specific set of missense SNPs reported in the CYP11A1 gene, aiming to identify variants that directly impact the interaction between CYP11A1 and CLR. The three-dimensional structure of the CYP11A1-CLR complex was obtained from the RCSB Protein Data Bank, while missense SNPs in the CYP11A1 gene were retrieved from Ensembl. To predict the most deleterious variants, we utilized the ConSurf server, SIFT, and PolyPhen. Furthermore, we assessed the impact of induced amino acid (AA) substitutions on the CYP11A1-CLR interaction using the PRODIGY server, PyMol, and Ligplot programs. Additionally, molecular dynamics (MD) simulations were conducted to analyze the effects of deleterious variants on the structural dynamics of the CYP11A1-CLR complex. Among the 8096 retrieved variants, we identified ten missense SNPs (E91K, W147G, R151W, R151Q, S391C, V392M, Q395K, Q416E, R460W, and R460Q) as deleterious for the interaction between CYP11A1 and CLR. MD simulations of the CYP11A1-CLR complexes carrying these deleterious AA substitutions revealed that Q416E, W147G, R460Q, and R460W had the most pronounced impacts on the structural dynamics of the complex. Consequently, these missense SNPs were considered the most deleterious ones. Further functional tests are recommended to assess the impact of these four missense SNPs on the enzymatic activity of CYP11A1. Moreover, Genome-Wide Association Studies (GWAS) should be conducted to determine the significance of their association with abnormal steroidogenesis diseases in various patient groups.
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Affiliation(s)
- Salaheddine Redouane
- Laboratory of Genomics and Human Genetics, Institut Pasteur du Maroc, Casablanca, Morocco; Laboratory of Physiopathology and Molecular Genetics, Department of Biology, Faculty of Sciences Ben M'Sik, Hassan II University, Casablanca, Morocco.
| | - Houda Harmak
- Laboratory of Genomics and Human Genetics, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Zouhair Elkarhat
- Laboratory of Genomics and Human Genetics, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Hicham Charoute
- Research Unit of Epidemiology, Biostatistics and Bioinformatics, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Abderrahim Malki
- Laboratory of Physiopathology and Molecular Genetics, Department of Biology, Faculty of Sciences Ben M'Sik, Hassan II University, Casablanca, Morocco
| | - Abdelhamid Barakat
- Laboratory of Genomics and Human Genetics, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Hassan Rouba
- Laboratory of Genomics and Human Genetics, Institut Pasteur du Maroc, Casablanca, Morocco
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Amellal H, Assaid N, Charoute H, Akarid K, Maaroufi A, Ezzikouri S, Sarih M. Kinetics of specific anti-SARS-CoV-2 IgM, IgA, and IgG responses during the first 12 months after SARS-CoV-2 infection: A prospective longitudinal study. PLoS One 2023; 18:e0288557. [PMID: 37437051 DOI: 10.1371/journal.pone.0288557] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 06/29/2023] [Indexed: 07/14/2023] Open
Abstract
Coronavirus 2019 (COVID-19) is a global health threat. The kinetics of antibodies against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) need to be assessed, as the long-term duration of these immunoglobulins remains largely controversial. The aim of this study was to assess the longitudinal dynamics of anti-SARS-CoV-2 antibodies against the nucleocapsid (N) protein and the receptor-binding domain (RBD) of the spike protein up to one year in a cohort of 190 COVID-19 patients. Between March and September 2021, we enrolled patients from two regional hospitals in Casablanca, Morocco. Blood samples were collected and analyzed for antibody levels. We used the commercial Euroimmun ELISA for the determination of anti-N IgM, the Abbott Architect™ SARS-CoV-2 IgG test for the detection of anti-RBD IgG, and an in-house kit for the assay of anti-N IgG and anti-N IgA. IgM and IgA antibodies were assessed 2-5, 9-12, 17-20 and 32-37 days after symptom onset. IgG antibodies were also assessed 60, 90, 120 and 360 days after symptom onset. One-third of patients developed IgM (32%), while two-thirds developed IgA (61%). One month of symptom onset, most patients developed IgG, with 97% and 93% positivity for anti-RBD IgG and anti-N IgG, respectively. The anti-RBD IgG positivity rate remained high up to one year of follow-up. However, the anti-N IgG positivity rate decreased over time, with only 41% of patients testing positive after one year's follow-up. IgG levels were significantly higher in older people (over 50 years) than in other study participants. We also found that patients who had received two doses of ChAdOx1 nCoV-19 vaccine prior to infection had a lower IgM response than unvaccinated patients. This difference was statistically significant two weeks after the onset of symptoms. We present the first study in Africa to measure the kinetics of antibody response (IgA, IgM and IgG) to SARS-CoV-2 over one year. Most participants remained seropositive for anti-RBD IgG after one year but showed a significant decline in antibody titers.
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Affiliation(s)
- Houda Amellal
- Department of Parasitology and Vector-Borne Diseases, Institut Pasteur du Maroc, Casablanca, Morocco
- Aïn Chock Faculty of Sciences, Health and Environment Laboratory, Biochemistry, Biotechnology and Immunophysiopathology Research Team, Hassan II University of Casablanca, Casablanca, Morocco
| | - Najlaa Assaid
- Department of Parasitology and Vector-Borne Diseases, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Hicham Charoute
- Institut Pasteur du Maroc, Research Unit of Epidemiology, Biostatistics and Bioinformatics, Casablanca, Morocco
| | - Khadija Akarid
- Aïn Chock Faculty of Sciences, Health and Environment Laboratory, Biochemistry, Biotechnology and Immunophysiopathology Research Team, Hassan II University of Casablanca, Casablanca, Morocco
| | - Abderrahmane Maaroufi
- Department of Parasitology and Vector-Borne Diseases, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Sayeh Ezzikouri
- Viral Hepatitis Laboratory, Institut Pasteur du Maroc, Virology Unit, Casablanca, Morocco
| | - M'hammed Sarih
- Department of Parasitology and Vector-Borne Diseases, Institut Pasteur du Maroc, Casablanca, Morocco
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Harmak H, Redouane S, Charoute H, Aniq Filali O, Barakat A, Rouba H. In silico exploration and molecular dynamics of deleterious SNPs on the human TERF1 protein triggering male infertility. J Biomol Struct Dyn 2023; 41:14665-14688. [PMID: 36995171 DOI: 10.1080/07391102.2023.2193995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 02/18/2023] [Indexed: 03/31/2023]
Abstract
By limiting chromosome erosion and end-to-end fusions, telomere integrity is critical for chromosome stability and cell survival. During mitotic cycles or due to environmental stresses, telomeres become progressively shorter and dysfunctional, thus triggering cellular senescence, genomic instability and cell death. To avoid such consequences, the telomerase action, as well as the Shelterin and CST complexes, assure the telomere's protection. Telomeric repeat binding factor 1 (TERF1), which is one of the primary components of the Shelterin complex, binds directly to the telomere and controls its length and function by regulating the telomerase activity. Several reports about TERF1 gene variations have been associated with different diseases, and some of them have linked these variations to male infertility. Hence, this paper can be advantageous to investigate the association between the missense variants of the TERF1 gene and the susceptibility to male infertility. The stepwise prediction of SNPs pathogenicity followed in this study was based on stability and conservation analysis, post-translational modification, secondary structure, functional interaction prediction, binding energy evaluation and finally molecular dynamic simulation. Prediction matching among the tools revealed that out of 18 SNPs, only four (rs1486407144, rs1259659354, rs1257022048 and rs1320180267) were predicted as the most damaging and highly deleterious SNPs affecting the TERF1 protein and its molecular dynamics when interacting with the TERB1 protein by influencing the function, structural stability, flexibility and compaction of the overall complex. Interestingly, these polymorphisms should be considered during genetic screening so they can be used effectively as genetic biomarkers for male infertility diagnosis.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Houda Harmak
- Laboratory of Genomics and Human Genetics, 1, Place Louis Pasteur, Institut Pasteur du Maroc, Casablanca, Morocco
- Laboratory of Physiopathology, Molecular Genetics and Biotechnology, Department of Biology, Faculty of Sciences Ain Chock, Hassan II University, Casablanca, Morocco
| | - Salaheddine Redouane
- Laboratory of Genomics and Human Genetics, 1, Place Louis Pasteur, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Hicham Charoute
- Research Unit of Epidemiology, Biostatistics and Bioinformatics, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Ouafaa Aniq Filali
- Laboratory of Physiopathology, Molecular Genetics and Biotechnology, Department of Biology, Faculty of Sciences Ain Chock, Hassan II University, Casablanca, Morocco
| | - Abdelhamid Barakat
- Laboratory of Genomics and Human Genetics, 1, Place Louis Pasteur, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Hassan Rouba
- Laboratory of Genomics and Human Genetics, 1, Place Louis Pasteur, Institut Pasteur du Maroc, Casablanca, Morocco
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9
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Assaid N, Arich S, Charoute H, Akarid K, Anouar Sadat M, Maaroufi A, Ezzikouri S, Sarih M. Kinetics of SARS-CoV-2 IgM and IgG Antibodies 3 Months after COVID-19 Onset in Moroccan Patients. Am J Trop Med Hyg 2023; 108:145-154. [PMID: 36509045 PMCID: PMC9833093 DOI: 10.4269/ajtmh.22-0448] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 09/24/2022] [Indexed: 12/15/2022] Open
Abstract
Coronavirus disease (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) poses serious global public health problems. Characterization of the immune response, particularly antibodies to SARS-CoV-2, is important for establishing vaccine strategies. The purpose of this study was to evaluate longitudinally the kinetics of anti-SARS-CoV-2 antibodies against spike protein (S1) for up to 3 months in a cohort of 169 COVID-19 patients. We enrolled COVID-19 patients at two regional hospitals in Casablanca, Morocco, between March and September 2021. Blood samples were collected and N-specific IgM and S-specific IgG levels were measured by a commercial Euroimmun ELISA. IgM antibodies were assessed 2-5 (D00), 9-12 (D07), 17-20 (D15), and 32-37 (D30) days after symptom onset; IgG antibodies were assessed at these time points plus 60 (D60) and 90 (D90) days after symptom onset. We found that at 3 months after symptom onset, 79% of patients had detectable SARS-CoV-2-specific IgG antibodies, whereas their IgM seropositivity was 19% by 1 month after symptom onset. The IgM level decreased to 0.34 (interquartile range [IQR] 0.19-0.92) at 1 month after symptom onset, whereas the IgG level peaked at D30 (3.10; IQR 1.83-5.64) and remained almost stable at D90 (2.95; IQR 1.52-5.19). IgG levels were significantly higher in patients older than 50 years than in those younger than 50 at all follow-up time points (P < 0.05). Statistical analysis showed no significant difference in median anti-S1 antibody levels among infected patients based on gender or comorbidities. This study provides information on the longevity of anti-SARS-CoV-2 IgM and IgG antibodies in COVID-19 patients.
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Affiliation(s)
- Najlaa Assaid
- Service de Parasitologie et des Maladies Vectorielles, Institut Pasteur du Maroc, Casablanca, Morocco;,Biochemistry, Biotechnology and Immunophysiopathology Research Team, Health and Environment Laboratory, Aïn Chock Faculty of Sciences, University of Hassan II Casablanca, Casablanca, Morocco
| | - Soukaina Arich
- Service de Parasitologie et des Maladies Vectorielles, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Hicham Charoute
- Research Unit of Epidemiology, Biostatistics and Bioinformatics, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Khadija Akarid
- Biochemistry, Biotechnology and Immunophysiopathology Research Team, Health and Environment Laboratory, Aïn Chock Faculty of Sciences, University of Hassan II Casablanca, Casablanca, Morocco
| | - Mohamed Anouar Sadat
- Research Unit of Epidemiology, Biostatistics and Bioinformatics, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Abderrahmane Maaroufi
- Service de Parasitologie et des Maladies Vectorielles, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Sayeh Ezzikouri
- Virology Unit, Viral Hepatitis Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco
| | - M’hammed Sarih
- Service de Parasitologie et des Maladies Vectorielles, Institut Pasteur du Maroc, Casablanca, Morocco;,Address correspondence to M’hammed Sarih, Service de Parasitologie et des Maladies Vectorielles, Institut Pasteur du Maroc, Place Louis Pasteur, Casablanca, Morocco. E-mail:
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10
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Nouara F, Amalou G, Bouzidi A, Charif M, Charoute H, Lenaers G, El Arabi S, Bousfiha B, Barakat A. First characterization of LTBP3 variants in two Moroccan families with hypoplastic amelogenesis imperfecta. Arch Oral Biol 2022; 142:105518. [DOI: 10.1016/j.archoralbio.2022.105518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 08/02/2022] [Accepted: 08/04/2022] [Indexed: 11/02/2022]
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11
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Krami AM, Ratib C, Charoute H, Rouba H, Roky R, Barakat A, Nahili H. Association between G2677T/A polymorphism in ABCB1 gene and the risk of drug resistance epilepsy: An updated systematic review and meta-analysis. Epilepsy Res 2022; 185:106977. [PMID: 35853334 DOI: 10.1016/j.eplepsyres.2022.106977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 07/02/2022] [Accepted: 07/04/2022] [Indexed: 11/18/2022]
Abstract
PURPOSE Epilepsy is a common serious brain condition characterized by the abnormal electrical activity of neurons. In most cases, epileptic patients respond to antiepileptic drugs. Approximately, one-third of patients prove medically intractable. The ABCB1 gene is a superfamily of ATP-binding cassette (ABC) transporters that encode a drug-transport protein, lead to cells and organs protects and eliminates toxic agents. We performed this meta-analysis to assess the association between G2677T/A in the ABCB1 gene and the risk of drug resistance in epileptic patients. METHODS Two online libraries (PubMed and Scopus) were used to identify studies that report the relationship between G2677T/A polymorphism in the MDR1 gene and the risk of antiepileptic drug resistance. The meta-analysis was performed using Review Manager 5.3 software. The pooled odds ratios and 95 % confidence intervals (CIs) were calculated using a random or fixed effects model according to the heterogeneity between studies. RESULTS A total of 33 eligible studies were included in this meta-analysis which 4192 patients were drug-resistant and 5079 patients were drug-responsive. As a result, a significant association was observed in overall population for the genetic model GG+GA vs AA (OR with 95 % CI = 0,56 [0.34,0.93]; P = 0.02). The subgroup ethnicity analysis showed a significant decrease in the risk of AEDs resistance in the Caucasian population. CONCLUSION In conclusion, our analysis demonstrates that G2677T/A polymorphism in the ABCB1 gene decreases the risk of drug resistance. More studies are needed in the different ethnic groups to clarify the role of polymorphism in AEDs resistance.
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Affiliation(s)
- Al Mehdi Krami
- Laboratory of Genomics and Human Genetics, Institut Pasteur du Maroc, 20360, Casablanca, Morocco; Laboratory of Physiopathology, Molecular Genetics & Biotechnology, Faculty of Sciences Ain Chock, Health and Biotechnology Research Centre, Hassan II University of Casablanca, Maarif B.P 5366, Casablanca, Morocco
| | - Chorouk Ratib
- Laboratory of Genomics and Human Genetics, Institut Pasteur du Maroc, 20360, Casablanca, Morocco; Laboratory of Biotechnology environment and health, Faculty of Science El Jadida, Morocco
| | - Hicham Charoute
- Research unit of Epidemiology, Biostatistics and Bioinformatics, Institut Pasteur du Maroc, Casablanca, Morocco.
| | - Hassan Rouba
- Laboratory of Genomics and Human Genetics, Institut Pasteur du Maroc, 20360, Casablanca, Morocco
| | - Rachida Roky
- Laboratory of Physiopathology, Molecular Genetics & Biotechnology, Faculty of Sciences Ain Chock, Health and Biotechnology Research Centre, Hassan II University of Casablanca, Maarif B.P 5366, Casablanca, Morocco
| | - Abdelhamid Barakat
- Laboratory of Genomics and Human Genetics, Institut Pasteur du Maroc, 20360, Casablanca, Morocco
| | - Halima Nahili
- Laboratory of Genomics and Human Genetics, Institut Pasteur du Maroc, 20360, Casablanca, Morocco
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12
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Bouzidi A, Charoute H, Charif M, Amalou G, Kandil M, Barakat A, Lenaers G. Clinical and genetic spectrums of 413 North African families with inherited retinal dystrophies and optic neuropathies. Orphanet J Rare Dis 2022; 17:197. [PMID: 35551639 PMCID: PMC9097391 DOI: 10.1186/s13023-022-02340-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 04/26/2022] [Indexed: 11/26/2022] Open
Abstract
Background Inherited retinal dystrophies (IRD) and optic neuropathies (ION) are the two major causes world-wide of early visual impairment, frequently leading to legal blindness. These two groups of pathologies are highly heterogeneous and require combined clinical and molecular diagnoses to be securely identified. Exact epidemiological studies are lacking in North Africa, and genetic studies of IRD and ION individuals are often limited to case reports or to some families that migrated to the rest of the world. In order to improve the knowledge of their clinical and genetic spectrums in North Africa, we reviewed published data, to illustrate the most prevalent pathologies, genes and mutations encountered in this geographical region, extending from Morocco to Egypt, comprising 200 million inhabitants. Main body We compiled data from 413 families with IRD or ION together with their available molecular diagnosis. The proportion of IRD represents 82.8% of index cases, while ION accounted for 17.8%. Non-syndromic IRD were more frequent than syndromic ones, with photoreceptor alterations being the main cause of non-syndromic IRD, represented by retinitis pigmentosa, Leber congenital amaurosis, and cone-rod dystrophies, while ciliopathies constitute the major part of syndromic-IRD, in which the Usher and Bardet Biedl syndromes occupy 41.2% and 31.1%, respectively. We identified 71 ION families, 84.5% with a syndromic presentation, while surprisingly, non-syndromic ION are scarcely reported, with only 11 families with autosomal recessive optic atrophies related to OPA7 and OPA10 variants, or with the mitochondrial related Leber ION. Overall, consanguinity is a major cause of these diseases within North African countries, as 76.1% of IRD and 78.8% of ION investigated families were consanguineous, explaining the high rate of autosomal recessive inheritance pattern compared to the dominant one. In addition, we identified many founder mutations in small endogamous communities. Short conclusion As both IRD and ION diseases constitute a real public health burden, their under-diagnosis in North Africa due to the absence of physicians trained to the identification of inherited ophthalmologic presentations, together with the scarcity of tools for the molecular diagnosis represent major political, economic and health challenges for the future, to first establish accurate clinical diagnoses and then treat patients with the emergent therapies. Supplementary Information The online version contains supplementary material available at 10.1186/s13023-022-02340-7.
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Affiliation(s)
- Aymane Bouzidi
- Equipe MitoLab, Unité MitoVasc, INSERM U1083, CHU d'Angers, CNRS 6015, Université d'Angers, 49933, Angers, France.,Genomics and Human Genetics Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco.,Team of Anthropogenetics and Biotechnologies, Faculty of Sciences, Chouaïb Doukkali University, Eljadida, Morocco
| | - Hicham Charoute
- Research Unit of Epidemiology, Biostatistics and Bioinformatics, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Majida Charif
- Genetics, and Immuno-Cell Therapy Team, Mohamed First University, Oujda, Morocco
| | - Ghita Amalou
- Equipe MitoLab, Unité MitoVasc, INSERM U1083, CHU d'Angers, CNRS 6015, Université d'Angers, 49933, Angers, France.,Genomics and Human Genetics Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco.,Team of Anthropogenetics and Biotechnologies, Faculty of Sciences, Chouaïb Doukkali University, Eljadida, Morocco
| | - Mostafa Kandil
- Team of Anthropogenetics and Biotechnologies, Faculty of Sciences, Chouaïb Doukkali University, Eljadida, Morocco
| | - Abdelhamid Barakat
- Genomics and Human Genetics Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Guy Lenaers
- Equipe MitoLab, Unité MitoVasc, INSERM U1083, CHU d'Angers, CNRS 6015, Université d'Angers, 49933, Angers, France. .,Service de Neurologie, CHU d'Angers, Angers, France.
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13
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Krami AM, Bouzidi A, Charif M, Amalou G, Charoute H, Rouba H, Roky R, Lenaers G, Barakat A, Nahili H. A homozygous nonsense HECW2 variant is associated with neurodevelopmental delay and intellectual disability. Eur J Med Genet 2022; 65:104515. [PMID: 35487419 DOI: 10.1016/j.ejmg.2022.104515] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 03/07/2022] [Accepted: 04/23/2022] [Indexed: 11/17/2022]
Abstract
Intellectual disability is characterized by a significant impaired intellectual and adaptive functioning, affecting approximately 1-3% of the population, which can be caused by a variety of environmental and genetic factors. In this respect, de novo heterozygous HECW2 variants were associated recently with neurodevelopmental disorders associated to hypotonia, seizures, and absent language. HECW2 encodes an E3 ubiquitin-protein ligase that stabilizes and enhances transcriptional activity of p73, a key factor regulating proliferation, apoptosis, and neuronal differentiation, which are together essential for proper brain development. Here, using whole exome sequencing, we identified a homozygous nonsense HECW2 variant: c.736C > T; p.Arg246* in a proband from a Moroccan consanguineous family, with developmental delay, intellectual disability, hypotonia, generalized tonico-clonic seizures and a persistent tilted head. Thus this study describes the first homozygous HECW2 variant, inherited as an autosomal recessive pattern, contrasting with former reported de novo variants found in HECW2 patients.
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Affiliation(s)
- Al Mehdi Krami
- Genomics and Human Genetics Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco; Laboratory of Physiopathology, Molecular Genetics & Biotechnology, Faculty of Sciences Ain Chock, Health and Biotechnology Research Centre, Hassan II University of Casablanca, Maarif B.P, 5366, Casablanca, Morocco.
| | - Aymane Bouzidi
- Genomics and Human Genetics Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco; Université Angers, MitoLab Team, UMR CNRS 6015, INSERM U1083, Institut MitoVasc, SFR ICAT, Angers, France; Team of Anthropogenetics and Biotechnologies, Faculty of Sciences, Chouaïb Doukkali University, El Jadida, Morocco
| | - Majida Charif
- Genetics and Immuno-Cell Therapy Team, Mohammed First University, Oujda, Morocco
| | - Ghita Amalou
- Genomics and Human Genetics Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco; Université Angers, MitoLab Team, UMR CNRS 6015, INSERM U1083, Institut MitoVasc, SFR ICAT, Angers, France; Team of Anthropogenetics and Biotechnologies, Faculty of Sciences, Chouaïb Doukkali University, El Jadida, Morocco
| | - Hicham Charoute
- Research Unit of Epidemiology, Biostatistics and Bioinfortmatics, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Hassan Rouba
- Genomics and Human Genetics Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Rachida Roky
- Laboratory of Physiopathology, Molecular Genetics & Biotechnology, Faculty of Sciences Ain Chock, Health and Biotechnology Research Centre, Hassan II University of Casablanca, Maarif B.P, 5366, Casablanca, Morocco
| | - Guy Lenaers
- Université Angers, MitoLab Team, UMR CNRS 6015, INSERM U1083, Institut MitoVasc, SFR ICAT, Angers, France; Service de Neurologie, CHU d'Angers, Angers, France
| | - Abdelhamid Barakat
- Genomics and Human Genetics Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Halima Nahili
- Genomics and Human Genetics Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco
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Assaid N, Arich S, Charoute H, Akarid K, Ezzikouri S, Maaroufi A, Sarih M. Anti-SARS-CoV-2 Antibody Responses 5 Months Post Complete Vaccination of Moroccan Healthcare Workers. Vaccines (Basel) 2022; 10:465. [PMID: 35335097 PMCID: PMC8952418 DOI: 10.3390/vaccines10030465] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 03/12/2022] [Accepted: 03/14/2022] [Indexed: 12/20/2022] Open
Abstract
Data about the duration of antibodies after vaccination show that the protection against SARS-CoV-2 infection begins to decline over time. This study aims to determine anti-SARS-CoV-2 anti-S IgG levels in healthcare workers five months after the second vaccination dose. We collected samples from 82 participants who were fully vaccinated with ChAdOx1 nCoV-19 or BBIBP-CorV. We assessed anti-SARS-CoV-2 IgG antibodies using a Euroimmun ELISA and an Abbott Architect ™ SARS-CoV-2 IgG test. Of the 82 participants, 65.85% were seropositive for IgG using ELISA, and 86.59% were positive for IgG according to the Abbott Architect ™ test. Individuals vaccinated with the ChAdOx1 nCoV-19 vaccine had a median anti-S1 antibody level of 1.810 AU/mL [interquartile range (IQR), 1.080-3.7340] and 171.7 AU/mL [79.9-684.6] according to the Euroimmun ELISA and Abbott Architect test, respectively. These tests indicated that people vaccinated with BBIBP-CorV had a median anti-S1 antibody level of 1.840 AU/mL [0.810-2.960] and 126.7 AU/mL [54.9-474.3], respectively. Statistical analysis showed no significant difference between the positivity rates of the vaccinated individuals, either for gender or for age. In addition, we found no significant difference between the two vaccines. Our study provides information on the longevity of the anti-SARS-CoV-2 IgG antibodies in people at least five months after vaccination.
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Affiliation(s)
- Najlaa Assaid
- Service de Parasitologie et des Maladies Vectorielles, Institut Pasteur du Maroc, Place Louis Pasteur, Casablanca 20360, Morocco; (N.A.); (S.A.); (A.M.)
- Health and Environment Laboratory, Molecular Genetics and Immunophysiopathology Research Team, Aïn Chock Faculty of Sciences, University of Hassan II Casablanca (UH2C), Casablanca 20100, Morocco;
| | - Soukaina Arich
- Service de Parasitologie et des Maladies Vectorielles, Institut Pasteur du Maroc, Place Louis Pasteur, Casablanca 20360, Morocco; (N.A.); (S.A.); (A.M.)
| | - Hicham Charoute
- Research Unit of Epidemiology, Biostatistics and Bioinformatics, Institut Pasteur du Maroc, Casablanca 20360, Morocco;
| | - Khadija Akarid
- Health and Environment Laboratory, Molecular Genetics and Immunophysiopathology Research Team, Aïn Chock Faculty of Sciences, University of Hassan II Casablanca (UH2C), Casablanca 20100, Morocco;
| | - Sayeh Ezzikouri
- Viral Hepatitis Laboratory, Virology Unit, Institut Pasteur du Maroc, Casablanca 20360, Morocco;
| | - Abderrahmane Maaroufi
- Service de Parasitologie et des Maladies Vectorielles, Institut Pasteur du Maroc, Place Louis Pasteur, Casablanca 20360, Morocco; (N.A.); (S.A.); (A.M.)
| | - M’hammed Sarih
- Service de Parasitologie et des Maladies Vectorielles, Institut Pasteur du Maroc, Place Louis Pasteur, Casablanca 20360, Morocco; (N.A.); (S.A.); (A.M.)
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15
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AitRaise I, Amalou G, Bousfiha A, Charoute H, Rouba H, Abdelghaffar H, Bonnet C, Petit C, Barakat A. Genetic heterogeneity in GJB2, COL4A3, ATP6V1B1 and EDNRB variants detected among hearing impaired families in Morocco. Mol Biol Rep 2022; 49:3949-3954. [PMID: 35301649 DOI: 10.1007/s11033-022-07245-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 02/04/2022] [Accepted: 02/08/2022] [Indexed: 11/24/2022]
Abstract
BACKGROUND Deafness is the most prevalent human sensorineural defect. It may occur as a result of an external auditory canal involvement, or a deficiency in the sound conduction mechanism, or an impairment of the cochlea, the cochlear nerve or central auditory perception. The genetic causes are the most common, as approximately 70% of hearing disorders are of hereditary origin, divided into two groups, syndromic (associated with other symptoms) and no syndromic (isolated deafness). METHODS A whole exome sequencing was performed to identify the genetic cause of hearing loss in six Moroccan families and Sanger sequencing was used to validate mutations in these genes. THE RESULTS The results of four out of the six families revealed four genetic variants in the genes GJB2, COL4A3, ATP6V1B1 and EDNRB responsible for non-syndromic and syndromic hearing loss. Multiple Bioinformatics programs and molecular modelling predicted the pathogenic effect of these mutations. CONCLUSIONS We identified in Moroccan deaf patients four homozygous mutations. These results show the importance of whole exome sequencing to identify pathogenic mutations in heterogeneous disorders with multiple genes responsible.
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Affiliation(s)
- Imane AitRaise
- Genomics and Human Genetics Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco.,Laboratoire de Biochimie, Environnement et Agroalimentaire, Faculty of Science and Techniques of Mohammedia, Hassan II University of Casablanca, Casablanca, Morocco
| | - Ghita Amalou
- Genomics and Human Genetics Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Amale Bousfiha
- Genomics and Human Genetics Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco.,Laboratoire de physiopathologie et génétique moléculaire, Faculté des Sciences Ben M'sik, Université Hassan II, Casablanca, Morocco
| | - Hicham Charoute
- Research unit of epidemiology, biostatistics and bioinformatics, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Hassan Rouba
- Genomics and Human Genetics Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Houria Abdelghaffar
- Laboratoire de Biochimie, Environnement et Agroalimentaire, Faculty of Science and Techniques of Mohammedia, Hassan II University of Casablanca, Casablanca, Morocco
| | - Crystel Bonnet
- Unité de Génétique et Physiologie de l'Audition, Institut Pasteur, 75015, Paris, France
| | - Christine Petit
- Unité de Génétique et Physiologie de l'Audition, Institut Pasteur, 75015, Paris, France.,Institut de l'Audition, 75012, Paris, France.,Collège de France, 75005, Paris, France
| | - Adbelhamid Barakat
- Genomics and Human Genetics Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco.
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Charoute H, Elkarhat Z, Elkhattabi L, El Fahime E, Oukkache N, Rouba H, Barakat A. Computational screening of potential drugs against COVID-19 disease: the Neuropilin-1 receptor as molecular target. Virusdisease 2022; 33:23-31. [PMID: 35079600 PMCID: PMC8776366 DOI: 10.1007/s13337-021-00751-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Accepted: 11/01/2021] [Indexed: 12/28/2022] Open
Abstract
The transmembrane receptor Neuropilin-1 (NRP-1) was reported to serve as a host cell entry factor for the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the causal agent of COVID-19 disease. Therefore, molecular compounds interfering with SARS-CoV-2 binding to NRP-1 seem to be potential candidates as new antiviral drugs. In this study, NRP-1 receptor was targeted using a library of 1167 compounds previously analyzed in COVID-19 related studies. The results show the effectiveness of Nafamostat, Y96, Selinexor, Ebastine and UGS, in binding to NRP-1 receptor, with docking scores lower than − 8.2 kcal/mol. These molecules interact with NRP-1 receptor key residues, which makes them promising drugs to pursue further biological assays to explore their potential use in the treatment of COVID-19.
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Affiliation(s)
- Hicham Charoute
- Research Unit of Epidemiology, Biostatistics and Bioinformatics, 1, Place Louis Pasteur, Institut Pasteur du Maroc, 20360 Casablanca, Morocco
- Laboratory of Genomics and Human Genetics, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Zouhair Elkarhat
- Laboratory of Genomics and Human Genetics, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Lamiae Elkhattabi
- Laboratory of Genomics and Human Genetics, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Elmostafa El Fahime
- Molecular Biology and Functional Genomics Platform, National Center for Scientific and Technical Research, Rabat, Morocco
| | - Naoual Oukkache
- Laboratory of Venoms and Toxins, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Hassan Rouba
- Laboratory of Genomics and Human Genetics, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Abdelhamid Barakat
- Laboratory of Genomics and Human Genetics, Institut Pasteur du Maroc, Casablanca, Morocco
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Alami IEL, Gihbid A, Charoute H, Khaali W, Brahim SM, Tawfiq N, Cadi R, Belghmi K, El Mzibri M, Khyatti M. Prognostic value of Epstein-Barr virus DNA load in nasopharyngeal carcinoma: a meta-analysis. Pan Afr Med J 2022; 41:6. [PMID: 35145598 PMCID: PMC8797042 DOI: 10.11604/pamj.2022.41.6.28946] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Accepted: 07/02/2021] [Indexed: 11/11/2022] Open
Affiliation(s)
- Imane EL Alami
- Laboratory of Viral Oncology, Institut Pasteur du Maroc, Casablanca, Morocco
- Laboratory of Microbiology, Pharmacology, Biotechnology and Environment, Faculty of Sciences Ain Chock, Hassan II University, Casablanca, Morocco
| | - Amina Gihbid
- Laboratory of Viral Oncology, Institut Pasteur du Maroc, Casablanca, Morocco
- Laboratory of Pathophysiology, Molecular Genetics and Biotechnology, Faculty of Sciences Ain Chock, Hassan II University, Casablanca, Morocco
| | - Hicham Charoute
- Laboratory of Viral Oncology, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Wafaa Khaali
- Laboratory of Viral Oncology, Institut Pasteur du Maroc, Casablanca, Morocco
| | | | - Nezha Tawfiq
- Mohammed VI Center for Cancer Treatment, Ibn Rochd University Hospital, Casablanca, Morocco
| | - Rachida Cadi
- Laboratory of Pathophysiology, Molecular Genetics and Biotechnology, Faculty of Sciences Ain Chock, Hassan II University, Casablanca, Morocco
| | - Khalid Belghmi
- Laboratory of Microbiology, Pharmacology, Biotechnology and Environment, Faculty of Sciences Ain Chock, Hassan II University, Casablanca, Morocco
| | - Mohammed El Mzibri
- Biology and Medical Research Unit, National Center of Energy, Nuclear Sciences and Techniques Rabat, Morocco
| | - Meriem Khyatti
- Laboratory of Viral Oncology, Institut Pasteur du Maroc, Casablanca, Morocco
- Corresponding author: Meriem Khyatti, Laboratory of Viral Oncology, Institut Pasteur du Maroc, Casablanca, Morocco.
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El Kacem S, Kbaich MA, Daoui O, Charoute H, Mhaidi I, Ejghal R, Barhoumi M, Guizani I, Bennani H, Lemrani M. Multilocus sequence analysis provides new insight into population structure and genetic diversity of Leishmania tropica in Morocco. Infect Genet Evol 2021; 93:104932. [PMID: 34023510 DOI: 10.1016/j.meegid.2021.104932] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 05/12/2021] [Accepted: 05/18/2021] [Indexed: 11/29/2022]
Abstract
Cutaneous leishmaniasis (CL) is one of the most neglected tropical diseases, caused by different Leishmania species. Despite its high incidence in Morocco, CL due to Leishmania tropica is poorly understood in terms of its epidemiological status and population structure. In this study, we used multilocus sequence typing (MLST) in order to explore the genetic heterogeneity of L. tropica strains. Samples (N = 48) were collected from CL patients in two localities in Morocco (Foum Jamaa in the Azilal province and Imintanoute in Chichaoua province). PCR-sequencing of 18 strains was carried out for six housekeeping genes (cytb, me, fh, g6pd, pgd and gpi), Genetic diversity indices showed a high population genetic differentiation between and among populations. There was no shared haplotypes between the two localities studied. Our results reveal a considerable degree of differentiation through the relatively high FST value (> 0.4) and remarkable intraspecific polymorphism (S = 29). Imintanoute strains have more polymorphisms (S = 22) than the Foum Jamaa strains despite their small sample size. These results provide crucial background information of epidemiology in Imintanoute which raises questions about animal involvement in L. tropica transmission cycle.
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Affiliation(s)
- Sofia El Kacem
- Laboratory of Parasitology and Vector-Borne-Diseases, Institut Pasteur du Maroc, Casablanca, Morocco; Laboratory of Biology and Health, Faculty of Sciences Ben M'Sik, Hassan II University, Casablanca, Morocco
| | - Mouad Ait Kbaich
- Laboratory of Parasitology and Vector-Borne-Diseases, Institut Pasteur du Maroc, Casablanca, Morocco; Molecular Genetics and Immunophysiopathology research team, Health and Environment Laboratory, Hassan II University of Casablanca, Aïn Chock Faculty of Sciences, Morocco
| | - Othmane Daoui
- Laboratory of Parasitology and Vector-Borne-Diseases, Institut Pasteur du Maroc, Casablanca, Morocco; Molecular Genetics and Immunophysiopathology research team, Health and Environment Laboratory, Hassan II University of Casablanca, Aïn Chock Faculty of Sciences, Morocco
| | - Hicham Charoute
- Bio-Informatics Department, Institut Pasteur du Maroc, Morocco
| | - Idris Mhaidi
- Laboratory of Parasitology and Vector-Borne-Diseases, Institut Pasteur du Maroc, Casablanca, Morocco; Molecular Genetics and Immunophysiopathology research team, Health and Environment Laboratory, Hassan II University of Casablanca, Aïn Chock Faculty of Sciences, Morocco
| | - Rajaa Ejghal
- Laboratory of Parasitology and Vector-Borne-Diseases, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Mourad Barhoumi
- Molecular Epidemiology and Experimental Pathology (MEEP)/ LR16IPT04, Institut Pasteur de Tunis, Université de Tunis El Manar, Tunisia
| | - Ikram Guizani
- Molecular Epidemiology and Experimental Pathology (MEEP)/ LR16IPT04, Institut Pasteur de Tunis, Université de Tunis El Manar, Tunisia
| | - Houda Bennani
- Laboratory of Biology and Health, Faculty of Sciences Ben M'Sik, Hassan II University, Casablanca, Morocco
| | - Meryem Lemrani
- Laboratory of Parasitology and Vector-Borne-Diseases, Institut Pasteur du Maroc, Casablanca, Morocco.
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Ejghal R, Charoute H, Talimi H, Rhazlane S, Lemrani M. Meta-analysis of -308G > A polymorphism in TNFα gene and susceptibility to leishmaniasis. Cytokine 2021; 140:155437. [PMID: 33503580 DOI: 10.1016/j.cyto.2021.155437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 12/04/2020] [Accepted: 12/29/2020] [Indexed: 11/18/2022]
Abstract
The clinical spectrum of leishmaniasis depends on several factors, including Leishmania species and immunogenetic factors. Tumor necrosis factor α (TNFα) plays a central role in immunity against intracellular infections. Many studies have reported that TNFα-308G > A polymorphism is associated with susceptibility to intracellular infections and influences TNFα production. Some studies on the implications of TNFα-308G > A polymorphism in the susceptibility to cutaneous leishmaniasis and visceral leishmaniasis showed controversial results. To draw an overall conclusion using accurate data analysis by increasing the number of cases studied, a meta-analysis was performed based on data from the studies included in the analysis. A total of 1264 patients and 2350 controls were enrolled in the meta-analysis. The results showed no significant association between allele G and allele A of -308G > A polymorphism and leishmaniasis by taking the two subgroups separately [ORCL = 0.99 (0.84-1.18) and ORVL = 1.19 (0.88-1.59)] or together [OR = 1.04 (0.90-1.20)]. This meta-analysis insinuates the absence of statistical evidence for an association between allele G and allele A of TNFα-308G > A polymorphism and Leishmania infection outcome. This suggests that TNFα, despite its crucial role in the immune response against Leishmania infection, is not the sole determinant factor. Other factors, such as gene-gene and gene-environment interactions, receptors, and signaling pathway efficiency, may influence TNFα function.
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Affiliation(s)
- Rajaâ Ejghal
- Laboratory of Parasitology and Vector-Borne-diseases, Institut Pasteur du Maroc, Casablanca, Morocco.
| | - Hicham Charoute
- Bio-Informatics Department, Institut Pasteur du Maroc, Morocco
| | - Hasnaa Talimi
- Laboratory of Parasitology and Vector-Borne-diseases, Institut Pasteur du Maroc, Casablanca, Morocco; National School of Applied Sciences, Tangier, Morocco
| | - Sara Rhazlane
- National School of Applied Sciences, Tangier, Morocco
| | - Meryem Lemrani
- Laboratory of Parasitology and Vector-Borne-diseases, Institut Pasteur du Maroc, Casablanca, Morocco
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20
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Elrharchi S, Riahi Z, Salime S, Charoute H, Elkhattabi L, Boulouiz R, Kabine M, Bonnet C, Petit C, Barakat A. Novel Mutation in AIFM1 Gene Associated with X-Linked Deafness in a Moroccan Family. Hum Hered 2021; 85:35-39. [PMID: 33486474 DOI: 10.1159/000512712] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Accepted: 10/20/2020] [Indexed: 11/19/2022] Open
Abstract
INTRODUCTION Auditory neuropathy is a hearing disorder where outer hair cell function within the cochlea is normal, but inner hair cell and/or the auditory nerve function is disrupted. It is a heterogeneous disorder, which can have either congenital or acquired causes. METHODS We found a disease-segregating mutation in the X-linked AIFM1 gene through whole-exome sequencing, encoding the apoptosis-inducing factor mitochondrion-associated 1. RESULTS The impact of the c.1045A>G; p.(Ser349Gly) mutation on the AIFM1 protein was predicted using different bioinformatics tools. The pedigree analysis in the examined family was consistent with X-linked dominant inheritance. DISCUSSION/CONCLUSION To our knowledge, this is the first study that identifies a mutation in the AIFM1 gene in Moroccan patients suffering from X-linked auditory neuropathy.
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Affiliation(s)
- Soukaina Elrharchi
- Laboratory of Genomics and Human Genetics, Institut Pasteur du Maroc, Casablanca, Morocco.,Laboratoire de Santé et Environnement, Faculté des sciences Ain Chock, Université Hassan II, Casablanca, Morocco
| | - Zied Riahi
- INSERM UMRS1120, Institut de la Vision, Paris, France.,UPMC-Sorbonnes Universités Paris-VI, Paris, France
| | - Sara Salime
- Laboratory of Genomics and Human Genetics, Institut Pasteur du Maroc, Casablanca, Morocco.,Laboratoire de Santé et Environnement, Faculté des sciences Ain Chock, Université Hassan II, Casablanca, Morocco
| | - Hicham Charoute
- Laboratory of Genomics and Human Genetics, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Lamiae Elkhattabi
- Laboratory of Genomics and Human Genetics, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Redouane Boulouiz
- Laboratory of Genomics and Human Genetics, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Mostafa Kabine
- Laboratoire de Santé et Environnement, Faculté des sciences Ain Chock, Université Hassan II, Casablanca, Morocco
| | - Crystel Bonnet
- INSERM UMRS1120, Institut de la Vision, Paris, France.,UPMC-Sorbonnes Universités Paris-VI, Paris, France
| | - Christine Petit
- INSERM UMRS1120, Institut de la Vision, Paris, France.,UPMC-Sorbonnes Universités Paris-VI, Paris, France.,Unité de Génétique et Physiologie de l'Audition, Institut Pasteur, Paris, France.,Collège de France, Paris, France
| | - Abdelhamid Barakat
- Laboratory of Genomics and Human Genetics, Institut Pasteur du Maroc, Casablanca, Morocco,
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21
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Elkhattabi L, Morjane I, Charoute H, Saile R, Barakat A. Computational screening and analysis of the functional and structural impact of SNPS of the human RETN gene associated to type 2 diabetes. Atherosclerosis 2020. [DOI: 10.1016/j.atherosclerosis.2020.10.622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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22
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Morjane I, Charoute H, Elkhattabi L, Saile R, Barakat A. Association of the C. 56C>G APOA5 gene polymorphism with coronary artery disease: Moroccan case-control study and an updated meta-analysis. Atherosclerosis 2020. [DOI: 10.1016/j.atherosclerosis.2020.10.587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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23
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Essadssi S, Benhsaien I, Bakhchane A, Charoute H, Abdelghaffar H, Bousfiha AA, Barakat A. A Homozygous RAG1 Gene Mutation in a Case of Combined Immunodeficiency: Clinical, Molecular, and Computational Analysis. Hum Hered 2020; 84:272-278. [PMID: 33075768 DOI: 10.1159/000510062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Accepted: 07/09/2020] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND The recombination-activating gene 1 and 2 (RAG1/RAG2) proteins are essential to initiate the V(D)J recombination process, the result is a diverse repertoire of antigen receptor genes and the establishment of the adaptive immunity. RAG1 mutations can lead to multiple forms of combined immunodeficiency. METHODS In this report, whole exome sequencing was performed in a Moroccan child suffering from combined immunodeficiency, with T and B lymphopenia, autoimmune hemolytic anemia, and cytomegalovirus (CMV) infection. RESULTS After filtering data and Sanger sequencing validation, one homozygous mutation c.2446G>A (p.Gly816Arg) was identified in the RAG1 gene. CONCLUSION This finding expands the spectrum of immunological and genetic profiles linked to RAG1 mutation, it also illustrates the necessity to consider RAG1 immunodeficiency in the presence of autoimmune hemolytic anemia and CMV infection, even assuming the immunological phenotype appears more or less normal.
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Affiliation(s)
- Soukaina Essadssi
- Laboratory of Genomics and Human Genetics, Institut Pasteur du Maroc, Casablanca, Morocco.,Laboratory of Biosciences, Integrated and Molecular Functional Exploration (LBEFIM), Faculty of Science and Technology of Mohammedia, Hassan II University of Casablanca, Casablanca, Morocco
| | - Ibtihal Benhsaien
- Clinical Immunology Unit, Ibn Rochd Hospital, King Hassan II University-AinChok, Casablanca, Morocco
| | - Amina Bakhchane
- Laboratory of Genomics and Human Genetics, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Hicham Charoute
- Laboratory of Genomics and Human Genetics, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Houria Abdelghaffar
- Laboratory of Biosciences, Integrated and Molecular Functional Exploration (LBEFIM), Faculty of Science and Technology of Mohammedia, Hassan II University of Casablanca, Casablanca, Morocco
| | - Ahmed Aziz Bousfiha
- Clinical Immunology Unit, Ibn Rochd Hospital, King Hassan II University-AinChok, Casablanca, Morocco
| | - Abdelhamid Barakat
- Laboratory of Genomics and Human Genetics, Institut Pasteur du Maroc, Casablanca, Morocco,
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Elkarhat Z, Charoute H, Elkhattabi L, Barakat A, Rouba H. Potential inhibitors of SARS-cov-2 RNA dependent RNA polymerase protein: molecular docking, molecular dynamics simulations and MM-PBSA analyses. J Biomol Struct Dyn 2020; 40:361-374. [PMID: 32873176 DOI: 10.1080/07391102.2020.1813628] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The SARS-cov-2 RNA dependent RNA polymerase (nsp12) is a crucial viral enzyme that catalyzes the replication of RNA from RNA templates. The fixation of some ligands in the active site may alter the viral life cycle. The aim of the present study is to identify the conservation level of nsp12 motifs (A-G), using consurf server, and discover their interactions with rifabutin, rifampicin, rifapentin, sorangicin A, streptolydigin, myxopyronin B, VXR and VRX using AutoDockTools-1.5.6, Gromacs 2018.2 and g-mmpbsa. Thus, the most of amino acids residues located in nsp12 protein Motifs (A-G) were predicted as highly conserved. The binding energies of streptolydigin, VXR, rifabutin, rifapentine, VRX, sorangicin A, myxopyronin B and rifampicin with nsp12 protein are -8.11, -8.23, -7.14, -6.94, -6.55, -5.46, -5.33 and -5.26 kcal/mol, respectively. In the other hand, the binding energies of ligand in the same order with nsp7-nsp8-nsp12 complex are -7.23, -7.08, -7.21, -7, -6.59, -8.73, -5.52, -5.87 kcal/mol, respectively. All ligands interact with at least two nsp12 motifs. The molecular dynamics simulation of nsp12-streptolydigin and nsp12-VXR complexes shows that these two complexes are stable and the number of hydrogen bonds as a function of time, after 30 ns of simulation, varies between 0 and 6 for nsp12-streptolydigin complex and between 0 and 4 for nsp12-VXR complex. The average of free binding energies obtained using g_mmpbsa, after 30 ns of simulation, is -191.982 Kj/mol for nsp12-streptolydigin complex and -153.583 Kj/mol for nsp12-VXR complex. Our results suggest that these ligands may be used as inhibitors of SARS-cov-2 nsp12 protein.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Zouhair Elkarhat
- Laboratory of Genomics and Human Genetics, Département de la Recherche Scientifique, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Hicham Charoute
- Laboratory of Genomics and Human Genetics, Département de la Recherche Scientifique, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Lamiae Elkhattabi
- Laboratory of Genomics and Human Genetics, Département de la Recherche Scientifique, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Abdelhamid Barakat
- Laboratory of Genomics and Human Genetics, Département de la Recherche Scientifique, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Hassan Rouba
- Laboratory of Genomics and Human Genetics, Département de la Recherche Scientifique, Institut Pasteur du Maroc, Casablanca, Morocco
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25
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Morjane I, Charoute H, Ouatou S, Elkhattabi L, Benrahma H, Saile R, Rouba H, Barakat A. Association of c.56C > G (rs3135506) Apolipoprotein A5 Gene Polymorphism with Coronary Artery Disease in Moroccan Subjects: A Case-Control Study and an Updated Meta-Analysis. Cardiol Res Pract 2020; 2020:5981971. [PMID: 32832146 PMCID: PMC7424381 DOI: 10.1155/2020/5981971] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 02/29/2020] [Accepted: 03/03/2020] [Indexed: 11/18/2022] Open
Abstract
PURPOSE Coronary artery diseases (CAD) are clinical cardiovascular events associated with dyslipidemia in common. The interaction between environmental and genetic factors can be responsible for CAD. The present paper aimed to examine the association between c.56C > G (rs3135506) APOA5 gene polymorphism and CAD in Moroccan individuals and to perform an association update meta-analysis. MATERIALS AND METHODS The c.56C > G variant was genotyped in 122 patients with CAD and 134 unrelated controls. Genetic association analysis and comparison of biochemical parameters were performed using R statistical language. In addition, a comprehensive meta-analysis including eleven published studies in addition to our case-control study results was conducted using Review Manager 5.3. Publication bias was examined by Egger's test and funnel plot. RESULTS The case-control study data showed that the c.56C > G polymorphism was associated with CAD susceptibility under codominant (P-value = 0.001), recessive (P-value <0.001) and log-additive (P-value = 0.008) inheritance models. In addition, this polymorphism was significantly associated with increased levels of systolic and diastolic blood pressures, triglycerides, glycemia, and total cholesterol. Furthermore, meta-analysis showed a significant association between the c.56C > G gene polymorphism and increased risk of CAD under recessive (OR = 3.39[1.77-6.50], P value <0.001) and homozygote codominant (OR = 3.96[2.44-6.45], P value <0.001) models. CONCLUSION Our case-control study revealed a significant association between c.56C > G polymorphism and CAD in the Moroccan population. In addition, meta-analysis data supported the implication of this polymorphism in CAD susceptibility.
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Affiliation(s)
- Imane Morjane
- Laboratory of Genomics and Human Genetics, Institut Pasteur Du Maroc, Casablanca, Morocco
- Laboratory of Biology and Health, Faculty of Sciences Ben M'Sik, Hassan II University of Casablanca, Casablanca, Morocco
| | - Hicham Charoute
- Laboratory of Genomics and Human Genetics, Institut Pasteur Du Maroc, Casablanca, Morocco
| | - Sanaa Ouatou
- Laboratory of Genomics and Human Genetics, Institut Pasteur Du Maroc, Casablanca, Morocco
| | - Lamiae Elkhattabi
- Laboratory of Genomics and Human Genetics, Institut Pasteur Du Maroc, Casablanca, Morocco
- Laboratory of Biology and Health, Faculty of Sciences Ben M'Sik, Hassan II University of Casablanca, Casablanca, Morocco
| | - Houda Benrahma
- Laboratory of Genomics and Human Genetics, Institut Pasteur Du Maroc, Casablanca, Morocco
- National Reference Laboratory (LNR), Faculty of Medicine, Mohammed VI University of Health Sciences (UM6SS), Casablanca, Morocco
| | - Rachid Saile
- Laboratory of Biology and Health, Faculty of Sciences Ben M'Sik, Hassan II University of Casablanca, Casablanca, Morocco
| | - Hassan Rouba
- Laboratory of Genomics and Human Genetics, Institut Pasteur Du Maroc, Casablanca, Morocco
| | - Abdelhamid Barakat
- Laboratory of Genomics and Human Genetics, Institut Pasteur Du Maroc, Casablanca, Morocco
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26
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Bousfiha A, Riahi Z, Elkhattabi L, Bakhchane A, Charoute H, Snoussi K, Bonnet C, Petit C, Barakat A. Further Evidence for the Implication of the MET Gene in Non-Syndromic Autosomal Recessive Deafness. Hum Hered 2019; 84:109-116. [PMID: 31801140 DOI: 10.1159/000503450] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Accepted: 09/18/2019] [Indexed: 11/19/2022] Open
Abstract
Mutations in the mesenchymal epithelial transition factor (MET) gene are frequently associated with multiple human cancers but can also lead to human non-syndromic autosomal recessive deafness (DFNB97). In the present study, we identified a novel homozygous missense mutation in the METgene causing a non-syndromic hearing impairment DFNB97 form. Whole-exome sequencing was performed to determine the genetic causes of hearing loss in a Moroccan consanguineous family with an affected daughter. The structural analysis of native and mutant in the SEMA domain of the MET receptor was investigated using a molecular dynamics simulation (MDS) approach. We identified a novel pathogenic homozygous c.948A>G (p.Ile316Met) mutation in the MET gene in one deaf Moroccan young girl carrying a total bilateral non-syndromic hearing impairment. The results of the MDS approach show that an Ile316Met mutation in the SEMA domain leads to protein flexibility loss. This may produce a major impact on the structural conformation of the MET receptor, which also affects the function and binding site of the receptor. This is the first time that a mutation in the MET gene is described in a Moroccan family. Moreover, this study reports the second family in the world associating deafness and mutation in the MET gene.
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Affiliation(s)
- Amale Bousfiha
- Laboratoire de Génomique et Génétique Humaine, Institut Pasteur du Maroc, Casablanca, Morocco.,Laboratoire de Physiopathologie et Génétique Moléculaire, Faculté des Sciences Ben M'Sik, Université Hassan II, Casablanca, Morocco
| | - Zied Riahi
- INSERM UMRS1120, Institut de la Vision, Paris, France.,UPMC-Sorbonnes Universités Paris VI, Paris, France
| | - Lamiae Elkhattabi
- Laboratoire de Génomique et Génétique Humaine, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Amina Bakhchane
- Laboratoire de Génomique et Génétique Humaine, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Hicham Charoute
- Laboratoire de Génomique et Génétique Humaine, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Khalid Snoussi
- Laboratoire de Génomique et Génétique Humaine, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Crystel Bonnet
- INSERM UMRS1120, Institut de la Vision, Paris, France.,UPMC-Sorbonnes Universités Paris VI, Paris, France
| | - Christine Petit
- INSERM UMRS1120, Institut de la Vision, Paris, France.,UPMC-Sorbonnes Universités Paris VI, Paris, France.,Unité de Génétique et Physiologie de l'Audition, Institut Pasteur, Paris, France.,Collège de France, Paris, France
| | - Abdelhamid Barakat
- Laboratoire de Génomique et Génétique Humaine, Institut Pasteur du Maroc, Casablanca, Morocco,
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27
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Elkarhat Z, Elkhattabi L, Charoute H, Morjane I, Errouagui A, Carey F, Nasser B, Barakat A, Rouba H. Identification of deleterious missense variants of human Piwi like RNA-mediated gene silencing 1 gene and their impact on PAZ domain structure, stability, flexibility and dimension: in silico analysis. J Biomol Struct Dyn 2019; 38:4600-4606. [DOI: 10.1080/07391102.2019.1678522] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Zouhair Elkarhat
- Laboratory of Genomics and Human Genetics, Institut Pasteur du Maroc, Casablanca, Morocco
- Faculty of Science and Technology, Laboratory of Neuroscience and Biochemistry, Settat, Morocco
| | - Lamiaa Elkhattabi
- Laboratory of Genomics and Human Genetics, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Hicham Charoute
- Laboratory of Genomics and Human Genetics, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Imane Morjane
- Laboratory of Genomics and Human Genetics, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Abdellatif Errouagui
- Laboratory of Genomics and Human Genetics, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Francis Carey
- Laboratory of Genomics and Human Genetics, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Boubker Nasser
- Faculty of Science and Technology, Laboratory of Neuroscience and Biochemistry, Settat, Morocco
| | - Abdelhamid Barakat
- Laboratory of Genomics and Human Genetics, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Hassan Rouba
- Laboratory of Genomics and Human Genetics, Institut Pasteur du Maroc, Casablanca, Morocco
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28
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Elkarhat Z, Belkady B, Charoute H, Zarouf L, Razoki L, Aboulfaraj J, Nassereddine S, Elbakay C, Nasser B, Barakat A, Rouba H. Cytogenetic profile of patients with clinical spectrum of ambiguous genitalia, amenorrhea, and Turner phenotype: A 21-year single-center experience. Am J Med Genet A 2019; 179:1516-1524. [PMID: 31207162 DOI: 10.1002/ajmg.a.61257] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 04/03/2019] [Accepted: 05/21/2019] [Indexed: 12/19/2022]
Abstract
The aim of the present study was to determine the frequency and nature of chromosomal abnormalities involved in patients with the clinical spectrum of ambiguous genitalia (AG), amenorrhea, and Turner phenotype, in order to compare them with those reported elsewhere. The study was conducted in the Cytogenetic Department of Pasteur Institute of Morocco, and it reports on the patients who were recruited between 1996 and 2016. Cytogenetic analysis was performed according to the standard method. Among 1,415 patients, chromosomal abnormalities were identified in 7.13% (48/673) of patients with AG, 17.39% (28/161) of patients with primary amenorrhea (PA), 4% (1/25) of patients with secondary amenorrhea, and 23.20% (129/556) of patients with Turner phenotype. However, Turner syndrome was diagnosed in 0.89% (6/673) of patients with AG, 10.56% (17/161) of patients with PA, and 19.78% (110/556) of patients with Turner phenotype. In addition, Klinefelter syndrome and mixed gonadal dysgenesis were confirmed in 2.97% and 1.93% of patients, respectively, with AG, while, chimerism, trisomy 8, and trisomy 13 were confirmed only in 0.15% each. Trisomy 21 was confirmed in patients with AG and Turner phenotype (0.15% and 0.36%, respectively). Moreover, 5.60% (9/161) of patients with PA have been diagnosed as having sex reversal. Thus, the frequency of chromosomal abnormalities observed in Moroccan patients with PA is comparable to that reported in Tunisia, Turkey, Iran, and Hong Kong. However, the frequency is significantly less than that identified in India, Malaysia, Italy, and Romania.
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Affiliation(s)
- Zouhair Elkarhat
- Laboratory of Genomics and Human Genetics, Institut Pasteur du Maroc, Casablanca, Morocco.,Laboratory of Neuroscience and Biochemistry, Faculty of Science and Technology, University Hassan 1er, Settat, Morocco
| | - Boutaina Belkady
- Laboratory of Genomics and Human Genetics, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Hicham Charoute
- Laboratory of Genomics and Human Genetics, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Latifa Zarouf
- Laboratory of Cytogenetics, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Lunda Razoki
- Laboratory of Cytogenetics, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Jamila Aboulfaraj
- Laboratory of Cytogenetics, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Sanaa Nassereddine
- Laboratory of Cytogenetics, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Chadli Elbakay
- Laboratory of Cytogenetics, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Boubker Nasser
- Laboratory of Neuroscience and Biochemistry, Faculty of Science and Technology, University Hassan 1er, Settat, Morocco
| | - Abdelhamid Barakat
- Laboratory of Genomics and Human Genetics, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Hassan Rouba
- Laboratory of Genomics and Human Genetics, Institut Pasteur du Maroc, Casablanca, Morocco
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Elkhattabi L, Morjane I, Charoute H, Amghar S, Bouafi H, Elkarhat Z, Saile R, Rouba H, Barakat A. In Silico Analysis of Coding/Noncoding SNPs of Human RETN Gene and Characterization of Their Impact on Resistin Stability and Structure. J Diabetes Res 2019; 2019:4951627. [PMID: 31236417 PMCID: PMC6545779 DOI: 10.1155/2019/4951627] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Revised: 02/25/2019] [Accepted: 04/01/2019] [Indexed: 12/20/2022] Open
Abstract
Resistin (RETN) is a gene coding for proinflammatory adipokine called resistin secreted by macrophages in humans. Single nucleotide polymorphisms (SNPs) in RETN are linked to obesity and insulin resistance in various populations. Using dbSNP, 78 nonsynonymous SNPs (nsSNPs) were retrieved and tested on a PredictSNP 1.0 megaserver. Among these, 15 nsSNPs were predicted as highly deleterious and thus subjected to further analyses, such as conservation, posttranscriptional modifications, and stability. The 3D structure of human resistin was generated by homology modeling using Swiss model. Root-mean-square deviation (RMSD), hydrogen bonds (h-bonds), and interactions were estimated. Furthermore, UTRscan served to identify UTR functional SNPs. Among the 15 most deleterious nsSNPs, 13 were predicted to be highly conserved including variants in posttranslational modification sites. Stability analysis predicted 9 nsSNPs (I32S, C51Y, G58E, G58R, C78S, G79C, W98C, C103G, and C104Y) which can decrease protein stability with at least three out of the four algorithms used in this study. These nsSNPs were chosen for structural analysis. Both variants C51Y and C104Y showed the highest RMS deviations (1.137 Å and 1.308 Å, respectively) which were confirmed by the important decrease in total h-bonds. The analysis of hydrophobic and hydrophilic interactions showed important differences between the native protein and the 9 mutants, particularly I32S, G79C, and C104Y. Six SNPs in the 3'UTR (rs920569876, rs74176247, rs1447199134, rs943234785, rs76346269, and rs78048640) were predicted to be implicated in polyadenylation signal. This study revealed 9 highly deleterious SNPs located in the human RETN gene coding region and 6 SNPs within the 3'UTR that may alter the protein structure. Interestingly, these SNPs are worth to be analyzed in functional studies to further elucidate their effect on metabolic phenotype occurrence.
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Affiliation(s)
- Lamiae Elkhattabi
- Laboratoire de Génomique et Génétique Humaine, Institut Pasteur du Maroc, Casablanca, Morocco
- Laboratoire de Biologie et Santé, Faculté des Sciences Ben M'Sik, Université Hassan II de Casablanca, Morocco
| | - Imane Morjane
- Laboratoire de Génomique et Génétique Humaine, Institut Pasteur du Maroc, Casablanca, Morocco
- Laboratoire de Biologie et Santé, Faculté des Sciences Ben M'Sik, Université Hassan II de Casablanca, Morocco
| | - Hicham Charoute
- Laboratoire de Génomique et Génétique Humaine, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Soumaya Amghar
- Laboratoire de Génomique et Génétique Humaine, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Hind Bouafi
- Laboratoire de Génomique et Génétique Humaine, Institut Pasteur du Maroc, Casablanca, Morocco
- Laboratoire de Biologie et Santé, Faculté des Sciences Ben M'Sik, Université Hassan II de Casablanca, Morocco
| | - Zouhair Elkarhat
- Laboratoire de Génomique et Génétique Humaine, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Rachid Saile
- Laboratoire de Biologie et Santé, Faculté des Sciences Ben M'Sik, Université Hassan II de Casablanca, Morocco
| | - Hassan Rouba
- Laboratoire de Génomique et Génétique Humaine, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Abdelhamid Barakat
- Laboratoire de Génomique et Génétique Humaine, Institut Pasteur du Maroc, Casablanca, Morocco
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Morjane I, Charoute H, El Yaagoubi FL, Hechmi M, Rachid S, Kefi R, Abdelhak S, Barakat A. Association Study of HNF1A Polymorphisms with Metabolic Syndrome in the Moroccan Population. ATHEROSCLEROSIS SUPP 2018. [DOI: 10.1016/j.atherosclerosissup.2018.04.247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Naasse Y, Bakhchane A, Charoute H, Jennane F, Bignon-Topalovic J, Malki A, Bashamboo A, Barakat A, Rouba H, McElreavey K. A Novel Homozygous Missense Mutation in the FU-CRD2 Domain of the R-spondin1 Gene Associated with Familial 46,XX DSD. Sex Dev 2017; 11:269-274. [PMID: 29262419 DOI: 10.1159/000485393] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/30/2017] [Indexed: 11/19/2022] Open
Abstract
R-spondin proteins are secreted agonists of canonical WNT/β-catenin signaling. Homozygous RSPO1 mutations cause a syndrome of 46,XX disorder of sexual development (DSD), palmoplantar keratoderma (PPK), and predisposition to squamous cell carcinoma. We report exome sequencing data of two 46,XX siblings, one with testicular DSD and the other with suspected ovotesticular DSD. Both have PPK and hearing impairment and carried a novel homozygous mutation c.332G>A (p.Cys111Tyr) located in the highly conserved furin-like cysteine-rich domain-2 (FU-CRD2). Cysteines in the FU-CRDs are strictly conserved, indicating their functional importance in WNT signaling through interaction with the leucine-rich repeat-containing G-protein-coupled receptors. This is the first RSPO1 missense mutation reported in association with human disease.
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Affiliation(s)
- Yassine Naasse
- Laboratoire de Génétique Moléculaire Humaine, Département de la Recherche Scientifique, Institut Pasteur du Maroc, Casablanca, Morocco
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Kindil Z, Senhaji MA, Bakhchane A, Charoute H, Chihab S, Nadifi S, Barakat A. Genetic investigation of XPA gene: high frequency of the c.682C>T mutation in Moroccan XP patients with moderate clinical profile. BMC Res Notes 2017; 10:704. [PMID: 29208038 PMCID: PMC5718079 DOI: 10.1186/s13104-017-3042-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Accepted: 11/30/2017] [Indexed: 01/19/2023] Open
Abstract
OBJECTIVE Xeroderma pigmentosum (XP) is a genetically and clinically heterogeneous disease, associated with an inherited defect in one of eight different genes (XPA to XPG and XPV). In addition to the early onset of the skin manifestations, the XP group A is marked by the presence of a mild to severe neural disorders which appear tardily and worsens with age. In this study, 9 patients with moderate clinical profile belonging to 6 XP families were recruited to determine the XPA mutational spectrum in Morocco, using the direct sequencing of the whole coding region of the XPA gene. RESULTS The genetic investigation of the XPA gene showed that 7 from 9 patients were homozygous for the c.682C>T, p.Arg228X mutation, while all their investigated family members were heterozygous. The frequency of this mutation was estimated to be 83.33% (5/6 families) .The molecular analysis of the 5 other exons of the XPA gene, showed that the 2 negative siblings carried no mutation in the XPA gene. This finding suggests that c.682C>T (p.Arg228X) mutation is relatively associated with moderate phenotype in XP group A Moroccan families; this result will also contribute to improve the molecular diagnosis of XP disease in Moroccan patients.
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Affiliation(s)
- Zineb Kindil
- Human Molecular Genetics Laboratory, Institut Pasteur du Maroc, 1, Place Louis Pasteur, 20360, Casablanca, Morocco.,Laboratory of Genetics and Molecular Pathology, Faculty of Medicine, Hassan II University, Casablanca, Morocco
| | - Mohamed Amine Senhaji
- Human Molecular Genetics Laboratory, Institut Pasteur du Maroc, 1, Place Louis Pasteur, 20360, Casablanca, Morocco
| | - Amina Bakhchane
- Human Molecular Genetics Laboratory, Institut Pasteur du Maroc, 1, Place Louis Pasteur, 20360, Casablanca, Morocco
| | - Hicham Charoute
- Human Molecular Genetics Laboratory, Institut Pasteur du Maroc, 1, Place Louis Pasteur, 20360, Casablanca, Morocco
| | - Soumia Chihab
- Department of Dermatology, Hospital University Ibn Rochd, Casablanca, Morocco
| | - Sellama Nadifi
- Laboratory of Genetics and Molecular Pathology, Faculty of Medicine, Hassan II University, Casablanca, Morocco
| | - Abdelhamid Barakat
- Human Molecular Genetics Laboratory, Institut Pasteur du Maroc, 1, Place Louis Pasteur, 20360, Casablanca, Morocco.
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Morjane I, Kefi R, Charoute H, Lakbakbi El Yaagoubi F, Hechmi M, Saile R, Abdelhak S, Barakat A. Association study of HNF1A polymorphisms with metabolic syndrome in the Moroccan population. Diabetes Metab Syndr 2017; 11 Suppl 2:S853-S857. [PMID: 28712822 DOI: 10.1016/j.dsx.2017.07.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2017] [Accepted: 07/01/2017] [Indexed: 12/22/2022]
Abstract
AIMS Variants in Hepatocyte Nuclear Factor 1 alpha (HNF1A) gene are associated with Metabolic Syndromeand its components independently. In this study, we aimed to assess the statistical association of the rs1169288, rs2464196 and rs735396 variants and haplotypes of HNF1A gene with metabolic syndrome (MS) and its components in a Moroccan population sample. METHODS Three variants in the HNF1A gene were genotyped, rs1169288 A>C, rs2464196 G>A and rs735396 T>C in cases and controls from Moroccan population using KASPar® technology (KBioscience, UK). Anthropometric and biochemical parameters were assessed. MS was defined according to the international Diabetes Federation (IDF). The effects of HNF1A polymorphisms and constructed haplotypes on MS were estimated using logistic regression analyses. RESULTS The HNF1A gene, rs1169288 and rs2464196 variants conferred an increased risk to MS (OR=2.08, 95%CI=1.38-3.14, P=0.0005 and OR=1.52, 95%IC=1.05-2.20, P=0.03, respectively) when adjusted for BMI, sex and age. We found that the C allele of the variant rs735396 was associated with an increased triglycerides level (p-value=0.04434) among patients and high weist circumference (P=0.02005) and total cholesterol (P=0.03227) amount among controls. The haplotype AAT (OR=5.656, P<0.00001) was the most significantly associated with susceptibility to metabolic syndrome. CONCLUSION The present study demonstrated that SNPs rs1169288 and rs2464196 of HNF1A gene were significantly associated with metabolic syndrome in a Morrocan population. Furthermore, the CAC, AAC, AAT and AGT haplotypes of these SNPs and rs735396 were significantly associated with metabolic syndrome.
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Affiliation(s)
- Imane Morjane
- Human Molecular Genetics Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco; Laboratoire de Biologie et Santé, Faculté des Sciences Ben M'Sik, Université Hassan II, Casablanca, Morocco
| | - Rym Kefi
- Laboratory of Biomedical Genomics and Oncogenetics, Institut Pasteur de Tunis, Tunis, Tunisia; Faculté des Sciences de Tunis, Université de Tunis El Manar, Tunis, Tunisia
| | - Hicham Charoute
- Human Molecular Genetics Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco
| | | | - Meryem Hechmi
- Laboratory of Biomedical Genomics and Oncogenetics, Institut Pasteur de Tunis, Tunis, Tunisia
| | - Rachid Saile
- Laboratoire de Biologie et Santé, Faculté des Sciences Ben M'Sik, Université Hassan II, Casablanca, Morocco
| | - Sonia Abdelhak
- Laboratory of Biomedical Genomics and Oncogenetics, Institut Pasteur de Tunis, Tunis, Tunisia; Faculté des Sciences de Tunis, Université de Tunis El Manar, Tunis, Tunisia
| | - Abdelhamid Barakat
- Human Molecular Genetics Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco.
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Salime S, Charif M, Bousfiha A, Elrharchi S, Bakhchane A, Charoute H, Kabine M, Snoussi K, Lenaers G, Barakat A. Homozygous mutations in PJVK and MYO15A genes associated with non-syndromic hearing loss in Moroccan families. Int J Pediatr Otorhinolaryngol 2017; 101:25-29. [PMID: 28964305 DOI: 10.1016/j.ijporl.2017.07.024] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Revised: 07/19/2017] [Accepted: 07/19/2017] [Indexed: 01/03/2023]
Abstract
OBJECTIVES Autosomal recessive non-syndromic hearing loss is a heterogeneous disorder and the most prevalent human genetic sensorineural defect. In this study, we investigated the geneticcause of sensorineural hearing loss in Moroccan patients and presented the importance of whole exome sequencing (WES) to identify candidate genes in two Moroccan families with profound deafness. METHODS After excluding mutations previously reported in Moroccan deaf patients, whole exome sequencing was performed and Sanger sequencing was used to validate mutations in these genes. RESULTS Our results disclosed the c.113_114insT (p.Lys41GlufsX8) and c.406C > T (p.Arg130X) homozygous mutations in PJVK and a homozygous c.5203C > T (p.Arg1735Trp) mutation in MYO15A, both genes responsible for non-syndromic recessive hearing loss DFNB59 and DFNB3, respectively. CONCLUSION We identified in Moroccan deaf patients two mutations in PJVK and one mutation in MYO15A described for the first time in association with non-syndromic recessive hearing loss. These results emphasize that whole exome sequencing is a powerful diagnostic strategy to identify pathogenic mutations in heterogeneous disorders with many various causative genes.
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Affiliation(s)
- Sara Salime
- Human Molecular Genetics Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco; Laboratoire de santé et Environnement, Université Hassan II, Faculté des Sciences Aïn Chock, Casablanca, Morocco
| | - Majida Charif
- MitoLab Team, CNRS UMR6015, INSERM U1083, Université d'Angers, CHU Bât IRIS/IBS, Rue des Capucins, 49933 Angerscedex 9, France
| | - Amale Bousfiha
- Human Molecular Genetics Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Soukaina Elrharchi
- Human Molecular Genetics Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Amina Bakhchane
- Human Molecular Genetics Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Hicham Charoute
- Human Molecular Genetics Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Mostafa Kabine
- Laboratoire de santé et Environnement, Université Hassan II, Faculté des Sciences Aïn Chock, Casablanca, Morocco
| | - Khalid Snoussi
- Human Molecular Genetics Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Guy Lenaers
- MitoLab Team, CNRS UMR6015, INSERM U1083, Université d'Angers, CHU Bât IRIS/IBS, Rue des Capucins, 49933 Angerscedex 9, France
| | - Abdelhamid Barakat
- Human Molecular Genetics Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco.
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Bousfiha A, Bakhchane A, Charoute H, Detsouli M, Rouba H, Charif M, Lenaers G, Barakat A. Novel compound heterozygous mutations in the GPR98 (USH2C) gene identified by whole exome sequencing in a Moroccan deaf family. Mol Biol Rep 2017; 44:429-434. [PMID: 28951997 DOI: 10.1007/s11033-017-4129-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Accepted: 09/19/2017] [Indexed: 01/26/2023]
Abstract
In the present work, we identified two novel compound heterozygote mutations in the GPR98 (G protein-coupled receptor 98) gene causing Usher syndrome. Whole-exome sequencing was performed to study the genetic causes of Usher syndrome in a Moroccan family with three affected siblings. We identify two novel compound heterozygote mutations (c.1054C > A, c.16544delT) in the GPR98 gene in the three affected siblings carrying post-linguale bilateral moderate hearing loss with normal vestibular functions and before installing visual disturbances. This is the first time that mutations in the GPR98 gene are described in the Moroccan deaf patients.
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Affiliation(s)
- Amale Bousfiha
- Human Molecular Genetics Laboratory, Institut Pasteur du Maroc, 1, Place Louis Pasteur, 20360, Casablanca, Morocco.,Laboratoire des Sciences Biologiques, Filière Technique de Santé, Institution Supérieure des Professions Infirmières et Techniques de Santé (ISPITS), Casablanca, Morocco
| | - Amina Bakhchane
- Human Molecular Genetics Laboratory, Institut Pasteur du Maroc, 1, Place Louis Pasteur, 20360, Casablanca, Morocco
| | - Hicham Charoute
- Human Molecular Genetics Laboratory, Institut Pasteur du Maroc, 1, Place Louis Pasteur, 20360, Casablanca, Morocco
| | - Mustapha Detsouli
- Human Molecular Genetics Laboratory, Institut Pasteur du Maroc, 1, Place Louis Pasteur, 20360, Casablanca, Morocco
| | - Hassan Rouba
- Human Molecular Genetics Laboratory, Institut Pasteur du Maroc, 1, Place Louis Pasteur, 20360, Casablanca, Morocco
| | - Majida Charif
- PREMMI, Mitochondrial Medicine Research Centre, Université d'Angers, CHU Bât IRIS/IBS, Rue des Capucins, 49933, Angers Cedex 9, France
| | - Guy Lenaers
- PREMMI, Mitochondrial Medicine Research Centre, Université d'Angers, CHU Bât IRIS/IBS, Rue des Capucins, 49933, Angers Cedex 9, France
| | - Abdelhamid Barakat
- Human Molecular Genetics Laboratory, Institut Pasteur du Maroc, 1, Place Louis Pasteur, 20360, Casablanca, Morocco.
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Lakbakbi El Yaagoubi F, Charoute H, Morjane I, Sefri H, Rouba H, Ainahi A, Kandil M, Benrahma H, Barakat A. Association analysis of genetic variants with metabolic syndrome components in the Moroccan population. Curr Res Transl Med 2017; 65:121-125. [DOI: 10.1016/j.retram.2017.08.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Revised: 07/17/2017] [Accepted: 08/09/2017] [Indexed: 12/17/2022]
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Bakhchane A, Charif M, Bousfiha A, Boulouiz R, Nahili H, Rouba H, Charoute H, Lenaers G, Barakat A. Novel compound heterozygous MYO7A mutations in Moroccan families with autosomal recessive non-syndromic hearing loss. PLoS One 2017; 12:e0176516. [PMID: 28472130 PMCID: PMC5417485 DOI: 10.1371/journal.pone.0176516] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Accepted: 04/12/2017] [Indexed: 12/12/2022] Open
Abstract
The MYO7A gene encodes a protein belonging to the unconventional myosin super family. Mutations within MYO7A can lead to either non syndromic hearing loss or to the Usher syndrome type 1B (USH1B). Here, we report the results of genetic analyses performed on Moroccan families with autosomal recessive non syndromic hearing loss that identified two families with compound heterozygous MYO7A mutations. Five mutations (c.6025delG, c.6229T>A, c.3500T>A, c.5617C>T and c.4487C>A) were identified in these families, the latter presenting two differently affected branches. Multiple bioinformatics programs and molecular modelling predicted the pathogenic effect of these mutations. In conclusion, the absence of vestibular and retinal symptom in the affected patients suggests that these families have the isolated non-syndromic hearing loss DFNB2 (nonsyndromic autosomal recessive hearing loss) presentation, instead of USH1B.
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Affiliation(s)
- Amina Bakhchane
- Human Molecular Genetics Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Majida Charif
- Human Molecular Genetics Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco
- Equipe MitoLab, INSERM U1083, CNRS 6015, Institut MitoVasc, Université d’Angers, Centre Hospitalier Universitaire d’Angers, Angers, France
| | - Amale Bousfiha
- Human Molecular Genetics Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Redouane Boulouiz
- Human Molecular Genetics Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Halima Nahili
- Human Molecular Genetics Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Hassan Rouba
- Human Molecular Genetics Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Hicham Charoute
- Human Molecular Genetics Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Guy Lenaers
- Equipe MitoLab, INSERM U1083, CNRS 6015, Institut MitoVasc, Université d’Angers, Centre Hospitalier Universitaire d’Angers, Angers, France
| | - Abdelhamid Barakat
- Human Molecular Genetics Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco
- * E-mail:
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Bousfiha A, Bakhchane A, Charoute H, Riahi Z, Snoussi K, Rouba H, Bonnet C, Petit C, Barakat A. A novel PEX1 mutation in a Moroccan family with Zellweger spectrum disorders. Hum Genome Var 2017; 4:17009. [PMID: 28446956 PMCID: PMC5390255 DOI: 10.1038/hgv.2017.9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Revised: 02/03/2017] [Accepted: 02/07/2017] [Indexed: 01/18/2023] Open
Abstract
Mutations in the PEX1 gene are usually associated with recessive inherited diseases including Zellweger spectrum disorders. In this work, we identified a new pathogenic missense homozygous PEX1 mutation (p.Leu1026Pro, c.3077T>C) in two Moroccan syndromic deaf siblings from consanguineous parents. This variation is located in the P-loop containing nucleoside triphosphate hydrolase of protein domain and probably causes an alteration in the hydrolysis of ATP.
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Affiliation(s)
- Amale Bousfiha
- Human Molecular Genetics Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Amina Bakhchane
- Human Molecular Genetics Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Hicham Charoute
- Human Molecular Genetics Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Zied Riahi
- INSERM UMRS1120, Institut de la Vision, Paris, France.,UPMC-Sorbonnes Universités Paris VI, Paris, France
| | - Khalid Snoussi
- Human Molecular Genetics Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Hassan Rouba
- Human Molecular Genetics Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco
| | - Crystel Bonnet
- INSERM UMRS1120, Institut de la Vision, Paris, France.,UPMC-Sorbonnes Universités Paris VI, Paris, France
| | - Christine Petit
- INSERM UMRS1120, Institut de la Vision, Paris, France.,UPMC-Sorbonnes Universités Paris VI, Paris, France.,Unité de Génétique et Physiologie de l'Audition, Institut Pasteur, Paris, France.,Collège de France, Paris, France
| | - Abdelhamid Barakat
- Human Molecular Genetics Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco
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Lagouaiti H, Zairy G, Charoute H, Somali R, Atouche N, Elalaoui A, Battas O, Agoub M. Association between GRM3 gene polymorphisms and response to treatment in Moroccan schizophrenic patients. Eur Psychiatry 2017. [DOI: 10.1016/j.eurpsy.2017.01.1594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
ObjectiveThe aim of this study is to evaluate the association between response to treatment in Moroccan schizophrenic patients and GRM3 gene polymorphisms.MethodWe have genotyped three SNPs of GRM3 gene (rs1989796, rs1468412, rs1476455) in 33 Moroccan schizophrenic patients. We assessed the severity of symptoms using Positive and Negative Symptoms Scale (PANSS) and Brief Psychiatric Rating Scale (BPRS) during two months of antipsychotics treatment.ResultsThe result revealed a positive change in PANSS negative symptoms in patients with rs1468412SNP and a difference in allele frequency of rs1989796SNP between responders and nonresponders to treatment.ConclusionOur data indicate that rs1468412 and rs1989796 GRM3 gene polymorphisms play a role in response to schizophrenia treatment.Disclosure of interestThe authors have not supplied their declaration of competing interest.
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Charoute H, Kefi R, Bounaceur S, Benrahma H, Reguig A, Kandil M, Rouba H, Bakhchane A, Abdelhak S, Barakat A. Novel variants of mitochondrial DNA associated with Type 2 diabetes mellitus in Moroccan population. Mitochondrial DNA A DNA Mapp Seq Anal 2016; 29:9-13. [PMID: 27728995 DOI: 10.1080/24701394.2016.1233530] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
In this study, we investigated the association of mtDNA variants and haplogroups with Type 2 diabetes (T2D) in Moroccan patients. The Hypervariable Segments 1 of the mtDNA was sequenced in 108 diabetic patients and 97 controls. Association analyses were performed using Fisher's exact test and multivariate logistic regression. The prevalence of five mtDNA variants (C16187T, C16270T, T16172C, A16293G, and C16320T) was significantly higher in cases than in controls. Among these variants, only C16270T (p = .02) and C16320T (p = .03) remains significant after adjusting by age and gender. We showed that C16270T and C16320T variants were strongly associated with increased risk of T2D in Moroccan patients.
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Affiliation(s)
- Hicham Charoute
- a Institut Pasteur, Human Molecular Genetic Laboratory , Casablanca , Morocco
| | - Rym Kefi
- b Biomedical Genomics and Oncogenetics Laboratory (LR 11 IPT 05) , Institut Pasteur de Tunis, Université de Tunis El Manar , Tunis , Tunisia
| | - Safaa Bounaceur
- a Institut Pasteur, Human Molecular Genetic Laboratory , Casablanca , Morocco
| | - Houda Benrahma
- a Institut Pasteur, Human Molecular Genetic Laboratory , Casablanca , Morocco
| | - Ahmed Reguig
- a Institut Pasteur, Human Molecular Genetic Laboratory , Casablanca , Morocco
| | - Mostafa Kandil
- c Equipe d'Anthropogénétique et Biotechnologies, Faculté des Sciences , Université Chouaïb Doukkali , El Jadida , Morocco
| | - Hassan Rouba
- a Institut Pasteur, Human Molecular Genetic Laboratory , Casablanca , Morocco
| | - Amina Bakhchane
- a Institut Pasteur, Human Molecular Genetic Laboratory , Casablanca , Morocco
| | - Sonia Abdelhak
- b Biomedical Genomics and Oncogenetics Laboratory (LR 11 IPT 05) , Institut Pasteur de Tunis, Université de Tunis El Manar , Tunis , Tunisia
| | - Abdelhamid Barakat
- a Institut Pasteur, Human Molecular Genetic Laboratory , Casablanca , Morocco
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Lakbakbi El Yaagoubi F, Charoute H, Bakhchane A, Ajjemami M, Benrahma H, Errouagui A, Kandil M, Rouba H, Barakat A. Association analysis of APOA5 rs662799 and rs3135506 polymorphisms with obesity in Moroccan patients. ACTA ACUST UNITED AC 2016; 63:243-7. [PMID: 26524954 DOI: 10.1016/j.patbio.2015.09.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2015] [Accepted: 09/29/2015] [Indexed: 01/27/2023]
Abstract
The aim of the present study is to explore the association between the APOA5 polymorphisms and haplotypes with obesity in Moroccan patients. The study was performed in 459 subjects, Obese (n=164) and non-obese (n=295). All subjects were genotyped for the APOA5 -1131T>C (rs662799) and c.56C>G (rs3135506) polymorphisms. The contribution of APOA5 polymorphisms and haplotypes in the increased risk of obesity were explored using logistic regression analyses. The -1131T>C and c.56C>G polymorphisms were significantly associated with obesity. Both polymorphisms were strongly associated with increased BMI. Analysis of constructed haplotypes showed a significant association between CG haplotype and susceptibility to obesity (OR [95%CI]=3.09 [1.93-4.97]; P<0.001). These results support a potential role for APOA5 common variants and related haplotypes as risk factors for obesity.
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Affiliation(s)
- F Lakbakbi El Yaagoubi
- Institut Pasteur, laboratoire de génétique moléculaire humaine, Casablanca, Morocco; Équipe d'anthropogénétique et biotechnologies, faculté des sciences, université Chouaïb Doukkali, El Jadida, Morocco
| | - H Charoute
- Institut Pasteur, laboratoire de génétique moléculaire humaine, Casablanca, Morocco
| | - A Bakhchane
- Institut Pasteur, laboratoire de génétique moléculaire humaine, Casablanca, Morocco
| | - M Ajjemami
- Institut Pasteur, laboratoire de génétique moléculaire humaine, Casablanca, Morocco
| | - H Benrahma
- Institut Pasteur, laboratoire de génétique moléculaire humaine, Casablanca, Morocco
| | - A Errouagui
- Institut Pasteur, laboratoire de génétique moléculaire humaine, Casablanca, Morocco
| | - M Kandil
- Équipe d'anthropogénétique et biotechnologies, faculté des sciences, université Chouaïb Doukkali, El Jadida, Morocco
| | - H Rouba
- Institut Pasteur, laboratoire de génétique moléculaire humaine, Casablanca, Morocco
| | - A Barakat
- Institut Pasteur, laboratoire de génétique moléculaire humaine, Casablanca, Morocco.
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Bakhchane A, Kindil Z, Charoute H, Benchikhi K, Khadir K, Nadifi S, Baline K, Roky R, Barakat A. Compound heterozygous SLC29A3 mutation causes H syndrome in a Moroccan patient: A case report. Curr Res Transl Med 2016; 64:65-8. [PMID: 27316388 DOI: 10.1016/j.retram.2016.01.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Accepted: 01/19/2016] [Indexed: 12/17/2022]
Abstract
H syndrome is an autosomal recessive syndrome, which affects the skin and some vital organs, it is caused by mutations in the SLC29A3 gene, encoding the human equilibrative nucleoside transporter hENT3. This report describes a patient with typical features of H syndrome. Based on the patient's clinical features, SLC29A3 was selected for molecular investigation. Through direct sequencing, a compound heterozygous alteration in the SLC29A3 gene was found. The c.243delA frameshift mutation leading to a premature termination, resulting in a truncated protein, and a splice site mutation c.300+1G>C predicted to cause a splicing error. This contribution extends the clinical variability of compound heterozygous SLC29A3 mutations resulting in an additional multisystemic manifestation of the clinical spectrum of SLC29A3 disorders.
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Affiliation(s)
- A Bakhchane
- Pasteur Institute, Human Molecular Genetic Laboratory, Casablanca, Morocco
| | - Z Kindil
- Pasteur Institute, Human Molecular Genetic Laboratory, Casablanca, Morocco
| | - H Charoute
- Pasteur Institute, Human Molecular Genetic Laboratory, Casablanca, Morocco
| | - K Benchikhi
- Department of Dermatology, Hospital University Ibn Rochd, Casablanca, Morocco
| | - K Khadir
- Department of Dermatology, Hospital University Ibn Rochd, Casablanca, Morocco
| | - S Nadifi
- Laboratory of Human Genetics and Molecular Pathology, Faculty of medicine, Hassan II University, Casablanca, Morocco
| | - K Baline
- Department of Dermatology, Hospital University Ibn Rochd, Casablanca, Morocco
| | - R Roky
- Université Hassan II Ain Chock, Laboratoire de Physiologie et génétique moléculaire, Km 8 Route d'El Jadida, BP 5366 Maarif, 20100 Casablanca, Morocco
| | - A Barakat
- Pasteur Institute, Human Molecular Genetic Laboratory, Casablanca, Morocco.
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Aadam Z, Kechout N, Barakat A, Chan KW, Ben-Ali M, Ben-Mustapha I, Zidi F, Ailal F, Attal N, Doudou F, Abbadi MC, Kaddache C, Smati L, Touri N, Chemli J, Gargah T, Brini I, Bakhchane A, Charoute H, Jeddane L, El Atiqi S, El Hafidi N, Hida M, Saile R, Alj HS, Boukari R, Bejaoui M, Najib J, Barbouche MR, Lau YL, Mellouli F, Bousfiha AA. X-Linked Agammagobulinemia in a Large Series of North African Patients: Frequency, Clinical Features and Novel BTK Mutations. J Clin Immunol 2016; 36:187-94. [PMID: 26931785 DOI: 10.1007/s10875-016-0251-z] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Accepted: 02/21/2016] [Indexed: 11/26/2022]
Abstract
PURPOSE X-linked agammagobulinemia (XLA) is a primary immunodeficiency caused by Bruton's tyrosine kinase (BTK) gene defect. XLA patients have absent or reduced number of peripheral B cells and a profound deficiency in all immunoglobulin isotypes. This multicenter study reports the clinical, immunological and molecular features of Bruton's disease in 40 North African male patients. METHODS Fifty male out of 63 (male and female) patients diagnosed with serum agammaglobulinemia and non detectable to less than 2% peripheral B cells were enrolled. The search for BTK gene mutations was performed for all of them by genomic DNA amplification and Sanger sequencing. RESULTS We identified 33 different mutations in the BTK gene in 40 patients including 12 missense mutations, 6 nonsense mutations, 6 splice-site mutations, 5 frameshift, 2 large deletions, one complex mutation and one in-frame deletion. Seventeen of these mutations are novel. This large series shows a lower frequency of XLA among male patients from North Africa with agammaglobulinemia and absent to low B cells compared with other international studies (63.5% vs. 85%). No strong evidence for genotype-phenotype correlation was observed. CONCLUSIONS This study adds to other reports from highly consanguineous North African populations, showing lower frequency of X-linked forms as compared to AR forms of the same primary immunodeficiency. Furthermore, a large number of novel BTK mutations were identified and could further help identify carriers for genetic counseling.
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Affiliation(s)
- Zahra Aadam
- Laboratory of Biology and Health URAC34-Metabolic and Immunologic pathology Research Team, Faculty of Science of BenM'sik, King Hassan II University, Casablanca, Morocco
- Institut Pasteur, Human Molecular Genetic Laboratory, Casablanca, Morocco
| | - Nadia Kechout
- Department of Immunology, Institut Pasteur d'Algérie, Faculty of Medicine, Algiers, Algeria
| | - Abdelhamid Barakat
- Institut Pasteur, Human Molecular Genetic Laboratory, Casablanca, Morocco.
| | - Koon-Wing Chan
- Departments of Pediatrics and Adolescent Medicine, The University of Hong Kong, Pokfulam, Hong Kong
| | - Meriem Ben-Ali
- Laboratory of Transmission, Control and Immunobiology of Infections (LR11IPT02), Institut Pasteur de Tunis, and University Tunis El Manar, Tunis, Tunisia
| | - Imen Ben-Mustapha
- Laboratory of Transmission, Control and Immunobiology of Infections (LR11IPT02), Institut Pasteur de Tunis, and University Tunis El Manar, Tunis, Tunisia
| | - Fethi Zidi
- Department of Pediatrics, Regional Hospital of Tozeur, Tozeur, Tunisia
| | - Fatima Ailal
- Clinical Immunology Unit, Ibn Rochd Hospital, King Hassan II University-AinChok, Casablanca, Morocco
| | - Nabila Attal
- Department of Immunology, Institut Pasteur d'Algérie, Faculty of Medicine, Algiers, Algeria
| | - Fatouma Doudou
- Department of Immunology, Institut Pasteur d'Algérie, Faculty of Medicine, Algiers, Algeria
| | - Mohamed-Cherif Abbadi
- Department of Immunology, Institut Pasteur d'Algérie, Faculty of Medicine, Algiers, Algeria
| | | | - Leila Smati
- Department of Pediatrics, EPH Bologhine, Faculty of Medicine, Algiers, Algeria
| | - Nabila Touri
- Department of Pediatrics, CHU Blida, Blida, Algeria
| | - Jalel Chemli
- Department of Pediatrics, Sahloul Hospital, Sousse, Tunisia
| | - Tahar Gargah
- Department of Pediatrics, Charles Nicolle Hospital, Tunis, Tunisia
| | - Ines Brini
- Department of Pediatrics B, Children's Hospital of Tunis, Tunis, Tunisia
| | - Amina Bakhchane
- Institut Pasteur, Human Molecular Genetic Laboratory, Casablanca, Morocco
| | - Hicham Charoute
- Institut Pasteur, Human Molecular Genetic Laboratory, Casablanca, Morocco
| | - Leila Jeddane
- Clinical Immunology Unit, Ibn Rochd Hospital, King Hassan II University-AinChok, Casablanca, Morocco
| | - Sara El Atiqi
- Clinical Immunology Unit, Ibn Rochd Hospital, King Hassan II University-AinChok, Casablanca, Morocco
| | - Naïma El Hafidi
- Department of Pediatric Infectious Diseases, Avicenne University Hospital, Rabat, Morocco
| | - Mustapha Hida
- Department of Pediatrics, Hassan II University Hospital, Fez, Morocco
| | - Rachid Saile
- Laboratory of Biology and Health URAC34-Metabolic and Immunologic pathology Research Team, Faculty of Science of BenM'sik, King Hassan II University, Casablanca, Morocco
| | - Hanane Salih Alj
- Laboratory of Biology and Health URAC34-Metabolic and Immunologic pathology Research Team, Faculty of Science of BenM'sik, King Hassan II University, Casablanca, Morocco
| | - Rachida Boukari
- Department of Pediatrics, CHU Mustapaha Bacha, Faculty of Medicine, Algiers, Algeria
| | - Mohamed Bejaoui
- National Bone Marrow Transplantation Center, Jebel Lakhdar, Tunis, Tunisia
| | - Jilali Najib
- Clinical Immunology Unit, Ibn Rochd Hospital, King Hassan II University-AinChok, Casablanca, Morocco
| | - Mohamed-Ridha Barbouche
- Laboratory of Transmission, Control and Immunobiology of Infections (LR11IPT02), Institut Pasteur de Tunis, and University Tunis El Manar, Tunis, Tunisia
| | - Yu-Lung Lau
- Departments of Pediatrics and Adolescent Medicine, The University of Hong Kong, Pokfulam, Hong Kong
| | - Fethi Mellouli
- National Bone Marrow Transplantation Center, Jebel Lakhdar, Tunis, Tunisia
| | - Ahmed Aziz Bousfiha
- Clinical Immunology Unit, Ibn Rochd Hospital, King Hassan II University-AinChok, Casablanca, Morocco
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Naasse Y, Charoute H, El Houate B, Elbekkay C, Razoki L, Malki A, Barakat A, Rouba H. Chromosomal abnormalities and Y chromosome microdeletions in infertile men from Morocco. BMC Urol 2015; 15:95. [PMID: 26385215 PMCID: PMC4574444 DOI: 10.1186/s12894-015-0089-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Accepted: 09/10/2015] [Indexed: 11/12/2022] Open
Abstract
Background Male infertility is responsible for 50 % of infertile couples. Thirty percent of male infertility is due to cytogenetic and genetic abnormalities. In Arab and North African populations, several studies have shown the association of these chromosomal abnormalities with male infertility. Our objective is to evaluate the frequency of chromosomal abnormalities and Y chromosome microdeletions in infertile men from Morocco. Methods A total of 573 Moroccan infertile men (444 azoospermic and 129 oligozoospermic men) referred for cytogenetic analysis to the Department of Cytogenetics of the Pasteur Institute of Morocco, were screened for the presence of chromosomal abnormalities and Y chromosome microdeletions. Results Chromosomal abnormalities accounted for approximately 10.5 % (60/573). Fifty six cases among them have sex chromosome abnormalities (93.34 %), including Klinefelter’s syndrome in 41 patients (68.34 %). Autosomal chromosome abnormalities (6.66 %) were observed in 4 patients. Chromosomal abnormalities were more prevalent in azoospermic men (13.06 %) than in oligospermic men (1.55 %). Y microdeletions were detected in 16 of 85 patients (AZFc: 14.12 %, AZFbc: 4.70 %), most of them where azoospermic men with no chromosomal abnormality. Conclusions These results highlighted the need for efficient molecular genetic testing in male infertility diagnosis. In addition, a genetic screening should be performed in infertile men before starting assisted reproductive treatments.
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Affiliation(s)
- Yassine Naasse
- Laboratoire de Génétique Moléculaire Humaine, Département de la Recherche Scientifique, Institut Pasteur du Maroc, 1 Place Louis Pasteur, 20360, Casablanca, Morocco. .,Laboratoire de Physiopathologie et Génétique Moléculaire, Faculté des Sciences Ben M'Sik, Université Hassan II, Casablanca, Morocco.
| | - Hicham Charoute
- Laboratoire de Génétique Moléculaire Humaine, Département de la Recherche Scientifique, Institut Pasteur du Maroc, 1 Place Louis Pasteur, 20360, Casablanca, Morocco.
| | - Brahim El Houate
- Laboratoire de Génétique Moléculaire Humaine, Département de la Recherche Scientifique, Institut Pasteur du Maroc, 1 Place Louis Pasteur, 20360, Casablanca, Morocco.
| | - Chadli Elbekkay
- Laboratoire de Cytogénétique, Département de la Recherche Scientifique, Institut Pasteur du Maroc, 1 Place Louis Pasteur, 20360, Casablanca, Morocco.
| | - Lunda Razoki
- Laboratoire de Cytogénétique, Département de la Recherche Scientifique, Institut Pasteur du Maroc, 1 Place Louis Pasteur, 20360, Casablanca, Morocco.
| | - Abderrahim Malki
- Laboratoire de Physiopathologie et Génétique Moléculaire, Faculté des Sciences Ben M'Sik, Université Hassan II, Casablanca, Morocco.
| | - Abdelhamid Barakat
- Laboratoire de Génétique Moléculaire Humaine, Département de la Recherche Scientifique, Institut Pasteur du Maroc, 1 Place Louis Pasteur, 20360, Casablanca, Morocco.
| | - Hassan Rouba
- Laboratoire de Génétique Moléculaire Humaine, Département de la Recherche Scientifique, Institut Pasteur du Maroc, 1 Place Louis Pasteur, 20360, Casablanca, Morocco.
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Charoute H, Bakhchane A, Benrahma H, Romdhane L, Gabi K, Rouba H, Fakiri M, Abdelhak S, Lenaers G, Barakat A. Mediterranean Founder Mutation Database (MFMD): Taking Advantage from Founder Mutations in Genetics Diagnosis, Genetic Diversity and Migration History of the Mediterranean Population. Hum Mutat 2015; 36:E2441-53. [PMID: 26173767 DOI: 10.1002/humu.22835] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2015] [Accepted: 06/26/2015] [Indexed: 01/09/2023]
Abstract
The Mediterranean basin has been the theater of migration crossroads followed by settlement of several societies and cultures in prehistoric and historical times, with important consequences on genetic and genomic determinisms. Here, we present the Mediterranean Founder Mutation Database (MFMD), established to offer web-based access to founder mutation information in the Mediterranean population. Mutation data were collected from the literature and other online resources and systematically reviewed and assembled into this database. The information provided for each founder mutation includes DNA change, amino-acid change, mutation type and mutation effect, as well as mutation frequency and coalescence time when available. Currently, the database contains 383 founder mutations found in 210 genes related to 219 diseases. We believe that MFMD will help scientists and physicians to design more rapid and less expensive genetic diagnostic tests. Moreover, the coalescence time of founder mutations gives an overview about the migration history of the Mediterranean population. MFMD can be publicly accessed from http://mfmd.pasteur.ma.
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Affiliation(s)
- Hicham Charoute
- Laboratoire de Génétique Moléculaire Humaine, Institut Pasteur du Maroc, 1 Place Louis Pasteur, 20360, Casablanca, Morocco.,Laboratory of Agri-food and Health, Faculty of Sciences and Techniques, Hassan 1st University, BP 577, 26000, Settat, Morocco
| | - Amina Bakhchane
- Laboratoire de Génétique Moléculaire Humaine, Institut Pasteur du Maroc, 1 Place Louis Pasteur, 20360, Casablanca, Morocco
| | - Houda Benrahma
- Laboratoire de Génétique Moléculaire Humaine, Institut Pasteur du Maroc, 1 Place Louis Pasteur, 20360, Casablanca, Morocco
| | - Lilia Romdhane
- Laboratory of Biomedical Genomics and Oncogenetics LR11IPT05, Institut Pasteur de Tunis, 1002, Tunis, Tunisia
| | - Khalid Gabi
- Laboratoire de Génétique Moléculaire Humaine, Institut Pasteur du Maroc, 1 Place Louis Pasteur, 20360, Casablanca, Morocco
| | - Hassan Rouba
- Laboratoire de Génétique Moléculaire Humaine, Institut Pasteur du Maroc, 1 Place Louis Pasteur, 20360, Casablanca, Morocco
| | - Malika Fakiri
- Laboratory of Agri-food and Health, Faculty of Sciences and Techniques, Hassan 1st University, BP 577, 26000, Settat, Morocco
| | - Sonia Abdelhak
- Laboratory of Biomedical Genomics and Oncogenetics LR11IPT05, Institut Pasteur de Tunis, 1002, Tunis, Tunisia
| | - Guy Lenaers
- Pôle de Recherche et d'Enseignement en Médecine Mitochondriale (PREMMi), Université d'Angers, CHU Bât IRIS/IBS, Rue des Capucins, 49933, Angers cedex 9, France
| | - Abdelhamid Barakat
- Laboratoire de Génétique Moléculaire Humaine, Institut Pasteur du Maroc, 1 Place Louis Pasteur, 20360, Casablanca, Morocco
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Ajjemami M, Ouatou S, Charoute H, Fakiri M, Rhaissi H, Benrahma H, Rouba H, Barakat A. Haplotype analysis of the Apolipoprotein A5 gene in Moroccan patients with the metabolic syndrome. J Diabetes Metab Disord 2015; 14:29. [PMID: 25909077 PMCID: PMC4407873 DOI: 10.1186/s40200-015-0160-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Accepted: 04/08/2015] [Indexed: 08/30/2023]
Abstract
BACKGROUND In this case-control study we investigated the relative contribution of commons APOA5 polymorphisms and haplotypes to the risk of metabolic syndrome in Moroccan patients. METHODS Using the International Diabetes Federation (IDF) criteria for metabolic syndrome, the study included 176 patients and 105 controls. We genotyped APOA5 polymorphisms (-1131 T > C, c.56C > G, c.553G > T and c.1259 T > C) by PCR-RFLP analysis. The effects of APOA5 polymorphisms and constructed haplotypes on metabolic syndrome were estimated using logistic regression analyses. RESULTS The statistical analysis showed a significant association between APOA5 -1131 T > C and APOA5 c.56C > G polymorphisms with metabolic syndrome in both Codominant and Dominant models. The APOA5 -1131 T > C polymorphism was associated with increased fasting glucose (p = 0.0295) and reduced HDL levels (p = 0.0091). Carriers of the APOA5 c.56G allele had increased triglyceride levels (p = 0.0435) and waist circumference (p = 0.0122). Similarly the APOA5 1259 T > C variant was associated with increased waist circumference (p = 0.0463). The haplotypes CCGT (OR = 3.223; p = 0.00278) and CGGT (OR = 8.234; p = 0.00534) were significantly associated with susceptibility to metabolic syndrome. CONCLUSIONS Our results confirms the association of APOA5 -1131 T > C and c.56C > G variants with the predisposition to metabolic syndrome complications.
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Affiliation(s)
- Maria Ajjemami
- Département de Recherche Scientifique, Laboratoire de Génétique Moléculaire Humaine, Institut Pasteur du Maroc, 1, Place Louis Pasteur, 20360 Casablanca, Morocco
| | - Sanaa Ouatou
- Département de Recherche Scientifique, Laboratoire de Génétique Moléculaire Humaine, Institut Pasteur du Maroc, 1, Place Louis Pasteur, 20360 Casablanca, Morocco
| | - Hicham Charoute
- Département de Recherche Scientifique, Laboratoire de Génétique Moléculaire Humaine, Institut Pasteur du Maroc, 1, Place Louis Pasteur, 20360 Casablanca, Morocco ; Univ Hassan 1, Laboratoire Agroalimentaire et Santé, 26000 Settat, Morocco
| | - Malika Fakiri
- Univ Hassan 1, Laboratoire Agroalimentaire et Santé, 26000 Settat, Morocco
| | - Houria Rhaissi
- Laboratoire de Physiologie et Génétique Moléculaire, Faculté des sciences Ben M'Sik, Université Hassan II, Mohammedia, Morocco
| | - Houda Benrahma
- Département de Recherche Scientifique, Laboratoire de Génétique Moléculaire Humaine, Institut Pasteur du Maroc, 1, Place Louis Pasteur, 20360 Casablanca, Morocco
| | - Hassan Rouba
- Département de Recherche Scientifique, Laboratoire de Génétique Moléculaire Humaine, Institut Pasteur du Maroc, 1, Place Louis Pasteur, 20360 Casablanca, Morocco
| | - Abdelhamid Barakat
- Département de Recherche Scientifique, Laboratoire de Génétique Moléculaire Humaine, Institut Pasteur du Maroc, 1, Place Louis Pasteur, 20360 Casablanca, Morocco
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Sefri H, Benrahma H, Charoute H, Lakbakbi el Yaagoubi F, Rouba H, Lyoussi B, Nourlil J, Abidi O, Barakat A. TNF A -308G>A polymorphism in Moroccan patients with type 2 diabetes mellitus: a case-control study and meta-analysis. Mol Biol Rep 2014; 41:5805-11. [PMID: 24952604 DOI: 10.1007/s11033-014-3454-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2013] [Accepted: 06/12/2014] [Indexed: 11/27/2022]
Abstract
Type 2 diabetes mellitus (T2DM) is one of causes of mortality and morbidity in Moroccan population. The identification of genes implicated in this disease can help to found a specific treatment and to improve the quality of life for type 2 diabetic patients. In this study we analyze the association between a polymorphism (-308G>A) of TNF A promoter gene and T2DM in Moroccan patients. Five hundred and fifty-one individuals (307 patients with T2DM and 244 controls) were genotyped for this polymorphism by PCR-RFLP. This association was further reconsidered by a meta-analysis on 21 studies including 8,187 cases and 7,811 controls. We found that in Moroccan patients the -308A allele is strongly associated with T2DM (p = 0.000002; odds ratio 1.79, 95 % confidence interval 1.41-2.28). Based on our meta-analysis, there was no significant association detected between the TNF A -308G>A polymorphism and risk for T2DM. Our results suggest that the -308G>A polymorphism is a genetic risk factor for the development of T2DM in Moroccan population. On the other hand the meta analysis results led to controversial conclusions in other ethnicities.
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Affiliation(s)
- Hajar Sefri
- Laboratoire de Génétique Moléculaire Humaine, Département de Recherche Scientifique, Institut Pasteur du Maroc, 1, Place Louis Pasteur, 20360, Casablanca, Morocco
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Benrahma H, Charoute H, Lasram K, Boulouiz R, Atig RKB, Fakiri M, Rouba H, Abdelhak S, Barakat A. Association analysis of IGF2BP2, KCNJ11, and CDKAL1 polymorphisms with type 2 diabetes mellitus in a Moroccan population: a case-control study and meta-analysis. Biochem Genet 2014; 52:430-42. [PMID: 24898818 DOI: 10.1007/s10528-014-9658-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2014] [Accepted: 04/25/2014] [Indexed: 11/24/2022]
Abstract
Associations with type 2 diabetes mellitus have been identified for variants CDKAL1 rs7756992, KCNJ11 rs5219, and IGF2BP2 rs4402960 in different populations. In a case-control study of 250 unrelated Moroccan diabetic patients and 250 healthy controls, we used TaqMan allelic discrimination assays to genotype the three SNPs and meta-analysis to investigate the association between the polymorphisms and diabetes in Arab populations. The results showed a significant diabetes association only with the variant rs4402960 of the IGF2BP2 gene under additive 2 (GG vs. TT; p = 0.009) and recessive (TT vs. GG+GT; p = 0.003) models. Meta-analysis indicated significant association between the IGF2BP2 rs4402960 and CDKAL1 rs7756992 polymorphisms and increased risk of diabetes in Arab populations. According to our results, the case-control study and meta-analysis revealed a significant association between the IGF2BP2 rs4402960 variant and type 2 diabetes in Moroccan and Arab populations.
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Affiliation(s)
- Houda Benrahma
- Laboratoire de Génétique Moléculaire Humaine, Département de Recherche Scientifique, Institut Pasteur du Maroc, Place Louis Pasteur, 20100, Casablanca, Morocco
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Ouatou S, Ajjemami M, Charoute H, Sefri H, Ghalim N, Rhaissi H, Benrahma H, Barakat A, Rouba H. Association of APOA5 rs662799 and rs3135506 polymorphisms with arterial hypertension in Moroccan patients. Lipids Health Dis 2014; 13:60. [PMID: 24684850 PMCID: PMC3972990 DOI: 10.1186/1476-511x-13-60] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2013] [Accepted: 03/26/2014] [Indexed: 01/26/2023] Open
Abstract
BACKGROUND The goal of the study is to investigate the association between the APOA5 polymorphisms and haplotypes with Arterial Hypertension (AHT) in Moroccan patients. METHODS The study was performed in 283 subjects, 149 patients with AHT and 134 controls. All subjects were genotyped for the APOA5 -1131 T > C (rs662799), 56C > G (rs3135506) and c.553G > T (rs2075291) polymorphisms. RESULTS There was a strong association between -1131 T > C and 56C > G polymorphisms with AHT. The -1131 T > C and 56C > G polymorphisms were significantly associated with increased systolic blood pressure (SBP) and triglycerides (TG) levels. There were 4 haplotypes with a frequency higher than 5%, constructed from APOA5 polymorphisms, with the following order: -1131 T > C, 56C > G and c.553G > T. Haplotype H1 (TCG) was associated with decreased risk of AHT, whereas the haplotypes H2 (CCG) and H4 (CGG) were significantly associated with an increased risk of AHT. Carriers of H1 haplotype had a lower SBP and DBP and TG. In contrast, significant elevated SBP, DBP and TG were found in H4 haplotypes carriers. CONCLUSIONS Our data demonstrate for the first time that several common SNPs in the APOA5 gene and their haplotypes are closely associated with modifications of blood pressure and serum lipid parameters in the AHT patient.
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Affiliation(s)
| | | | | | | | | | | | | | - Abdelhamid Barakat
- Laboratoire de Génétique Moléculaire et Humaine, Département de Recherche Scientifique, Institut Pasteur du Maroc, 1, Place Louis Pasteur, 20360 Casablanca, Morocco.
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